test/Tools/isac/Knowledge/rootrateq.sml
author Walther Neuper <walther.neuper@jku.at>
Tue, 11 Feb 2020 10:59:18 +0100
changeset 59803 c547cf9d5562
parent 59765 3ac99a5f910b
child 59804 403f00b309ef
permissions -rw-r--r--
cleanup Step.do_next

Note: in test/../rootrateq.sml an indeterministic error popped up
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(* testexamples for RootratEq, equations mixing fractions and roots
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   WN120314 some complicated equations still are outcommented.
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   *)
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"-----------------------------------------------------------------";
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"table of contents -----------------------------------------------";
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"-----------------------------------------------------------------";
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"------------ tests on predicates  -------------------------------";
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"------------ test thm rootrat_equation_left_1 -------------------";
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"------------ test thm rootrat_equation_left_2 -------------------";
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"------------ test thm rootrat_equation_right_1 ------------------";
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"------------ test thm rootrat_equation_right_2 ------------------";
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"-----------------------------------------------------------------";
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"-----------------------------------------------------------------";
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(* Note on ERROR "check_elementwise: no set 1 + sqrt x = 3".
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  this error popped up with this harmless changeset, which
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(1) triggered ["RootEq", "solve_sq_root_equation"] first time, because wrong '' in
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    (Try (Repeat (Rewrite_Set ''make_rooteq ''))) was found
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(2) correction ''make_rooteq'' led further to "check_elementwise: no set 1 + sqrt x = 3"
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  Since the changeset seems have nothing todo with these errors, this indicates that
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(a) either method ["RootEq", "solve_sq_root_equation"] & Co are somewhat indeterministic
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(b) of this is a case of indeterminism due to "handle _" or something similar elementary.
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*)
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val thy = @{theory "RootRatEq"};
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"------------ tests on predicates  -------------------------------";
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"------------ tests on predicates  -------------------------------";
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"------------ tests on predicates  -------------------------------";
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val t1 = (Thm.term_of o the o (parse thy)) "(-8 - sqrt(x) + x^^^2) is_rootRatAddTerm_in x";
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val SOME (t,_) = rewrite_set_ @{theory "RootRatEq"} false RootRatEq_prls t1;
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if (term2str t) = "False" then ()
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 else  error "rootrateq.sml: diff.behav. 1 in is_rootRatAddTerm_in";
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val t1 = (Thm.term_of o the o (parse thy)) "(1/x) is_rootRatAddTerm_in x";
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val SOME (t,_) = rewrite_set_ @{theory "RootRatEq"} false RootRatEq_prls t1;
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if (term2str t) = "False" then ()
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 else  error "rootrateq.sml: diff.behav. 2 in is_rootRatAddTerm_in";
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val t1 = (Thm.term_of o the o (parse thy)) "(1/sqrt(x)) is_rootRatAddTerm_in x";
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val SOME (t,_) = rewrite_set_ @{theory "RootRatEq"} false RootRatEq_prls t1;
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if (term2str t) = "False" then ()
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 else  error "rootrateq.sml: diff.behav. 3 in is_rootRatAddTerm_in";
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val t1 = (Thm.term_of o the o (parse thy)) "(1/(sqrt(x)+1)) is_rootRatAddTerm_in x";
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val SOME (t,_) = rewrite_set_ @{theory "RootRatEq"} false RootRatEq_prls t1;
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if (term2str t) = "True" then ()
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 else  error "rootrateq.sml: diff.behav. 4 in is_rootRatAddTerm_in";
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val t1 = (Thm.term_of o the o (parse thy)) "(3 + 1/(1+sqrt(x))) is_rootRatAddTerm_in x";
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val SOME (t,_) = rewrite_set_ @{theory "RootRatEq"} false RootRatEq_prls t1;
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if (term2str t) = "True" then ()
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 else  error "rootrateq.sml: diff.behav. 5 in is_rootRatAddTerm_in";
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val t1 = (Thm.term_of o the o (parse thy)) "(1/(1+sqrt(y)) + 3 + 1/(1+sqrt(x))) is_rootRatAddTerm_in x";
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val SOME (t,_) = rewrite_set_ @{theory "RootRatEq"} false RootRatEq_prls t1;
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if (term2str t) = "True" then ()
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 else  error "rootrateq.sml: diff.behav. 6 in is_rootRatAddTerm_in";
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val t1 = (Thm.term_of o the o (parse thy)) "(1/(1+sqrt(x)) + 3 + 1/(1+sqrt(y))) is_rootRatAddTerm_in x";
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val SOME (t,_) = rewrite_set_ @{theory "RootRatEq"} false RootRatEq_prls t1;
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if (term2str t) = "True" then ()
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 else  error "rootrateq.sml: diff.behav. 7 in is_rootRatAddTerm_in";
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"------------ test thm rootrat_equation_left_1 -------------------";
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"------------ test thm rootrat_equation_left_1 -------------------";
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"------------ test thm rootrat_equation_left_1 -------------------";
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val c = [];
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val fmz = ["equality ( -2 + 1/(1 - sqrt(x))= (0::real))", "solveFor x","solutions L"];
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val (dI',pI',mI') = ("RootRatEq",["univariate","equation"],["no_met"]);
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val (p,_,f,nxt,_,pt) = CalcTreeTEST [(fmz, (dI',pI',mI'))];
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val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*============ inhibit exn WN120319 ==============================================
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(*From final Test_Isac.thy we suddenly have
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          nxt = ("Model_Problem", Model_Problem)
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which we did not investigate further due to the decision to drop the whole type of equation.
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*)
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if f2str f = "1 = (0 - -2) * (1 + -1 * sqrt x)" then ()
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else error "rootrateq.sml: diff.behav. in rootrat_equation_left_1 a";
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(*-> Subproblem ("RootRatEq", ["sq", "rootX", "univariate", "equation"])*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p''',_,f,nxt,_,pt''') = me nxt p c pt;
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(*we investigate, why the next step results in Empty_Tac*)
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f2str f = "1 = 2 * (1 + -1 * sqrt x)";
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nxt = ("Rewrite_Set", Rewrite_Set "make_rooteq");
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(*... these ar the step's arguments; from these we do directly ...*)
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val SOME t = parseNEW ctxt "1 = 2 * (1 + -1 * sqrt x)"
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val SOME (t, _) = rewrite_set_ thy true make_rooteq t;
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term2str t = "1 = 2 + -2 * sqrt x";
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(*... which works; thus error must be in script interpretation*)
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"~~~~~ fun me, args:"; val (tac, (p:pos'), _, (pt:ctree)) = (nxt, p, c, pt);
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val (pt, p) = case locatetac tac (pt,p) of
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	("ok", (_, _, ptp))  => ptp;
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"~~~~~ fun Step.do_next, args:"; val (ip as (_,p_), (ptp as (pt,p), tacis)) = (p, ((pt, e_pos'), []))
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val pIopt = get_pblID (pt,ip);
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ip;    (*= ([3, 2], Res)*)
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tacis; (*= []*)
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pIopt; (*= SOME ["sq", "rootX", "univariate", "equation"]*)
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member op = [Pbl,Met] p_ andalso is_none (get_obj g_env pt (fst p)); (*= false*)
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"~~~~~ fun do_next, args:"; (*stopped due to strange exn
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  "check_elementwise: no set 1 = 2 + -2 * sqrt x"*)
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(*---- 2nd try: we investigate the script ["RootEq","solve_sq_root_equation"] found via pbl*)
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val t = str2term "((lhs e_e) is_sqrtTerm_in v_v) | ((rhs e_e) is_sqrtTerm_in v_v)";
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val t = str2term ("((lhs (1 = 2 * (1 + -1 * sqrt x))) is_sqrtTerm_in x) |" ^
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                 " ((rhs (1 = 2 * (1 + -1 * sqrt x))) is_sqrtTerm_in x)");
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val SOME (t, _) = rewrite_set_ thy true rooteq_srls t;
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term2str t = "True | True"; (*...was same in 2002 (NOT "True"); so program seems to take 
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  [univariate,equation] and to refine to ["sq", "rootX", "univariate", "equation"] in 2002*)
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(*(*these are the errors during stepping into the code:*)
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Step_Solve.do_next (pt,ip); (*check_elementwise: no set 1 = 2 + -2 * sqrt x: fun mk_set raises
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  this exn in Check_elementwise ONLY ?!?*)
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Step.do_next p ((pt, e_pos'),[]); (* = ("helpless",*)
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*)
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val (p,_,f,nxt,_,pt) = me nxt p''' c pt''';
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f2str f = "1 = 2 + -2 * sqrt x)"; (* <<<-------------- this should be*)
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fst nxt = "Empty_Tac"; (* <<<-------------- this we have*)
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(*============ inhibit exn WN120314: stopped due to effort; continue with equ-solver
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The equation is strange: it calls script ["RootEq","solve_sq_root_equation"] twice
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and works differently due to an "if" in that script.
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if f2str f = "1 = 2 + -2 * sqrt x" then ()
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else error "rootrateq.sml: diff.behav. in rootrat_equation_left_1 b";
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(*-> Subproblem ("RootRatEq", ["sq", "rootX", "univariate", "equation"]) ?!? the SAME as above*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; 
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f; 
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f; 
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f; 
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; f2str f;
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if f2str f = "1 = 4 * x" then ()
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else error "rootrateq.sml: diff.behav. in rootrat_equation_left_1 c";
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(*-> Subproblem ("PolyEq", ["normalise", "polynomial", "univariate", "equation"])*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; 
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if f2str f = "1 + -4 * x = 0" then ()
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else error "rootrateq.sml: diff.behav. in rootrat_equation_left_1";
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(*-> Subproblem ("PolyEq", ["degree_1", "polynomial", "univariate", "equation"])*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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case f of Form' (FormKF (~1,EdUndef,0,Nundef,"[x = 1 / 4]")) => ()
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	 | _ => error "rootrateq.sml: diff.behav. in  -2 + 1/(1 - sqrt(x))= 0 -> [x = 1/4]";
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============ inhibit exn WN120314 ==============================================*)
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============ inhibit exn WN120319 ==============================================*)
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"------------ test thm rootrat_equation_left_2 -------------------";
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"------------ test thm rootrat_equation_left_2 -------------------";
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"------------ test thm rootrat_equation_left_2 -------------------";
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val fmz = ["equality (3/(1+sqrt(x))= 1)", "solveFor x","solutions L"];
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val (dI',pI',mI') = ("RootRatEq",["univariate","equation"],["no_met"]);
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val (p,_,f,nxt,_,pt) = CalcTreeTEST [(fmz, (dI',pI',mI'))];
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val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 10 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*-> Subproblem ("RootEq", ["univariate", ...])*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 20 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*//------------------ ERROR check_elementwise: no set 1 + sqrt x = 3 -----------------------\\* )
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val (p,_,f,nxt,_,pt) = me nxt p c pt; 
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(*-> Subproblem ("RootEq", ["univariate", ...])*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 30 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; 
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(*-> Subproblem ("RootEq", ["univariate", ...])*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 40 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; 
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( *\\------------------ ERROR check_elementwise: no set 1 + sqrt x = 3 -----------------------//*)
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(*============ inhibit exn WN120314 ==============================================
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if f = Form' (FormKF (~1, EdUndef, 0, Nundef, "4 + -1 * x = 0")) then ()
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else error "rootrateq.sml: diff.behav. in rootrat_equation_left_2";
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(*-> Subproblem ("PolyEq", ["polynomial", ...])*)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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case f of Form' (FormKF (~1,EdUndef,0,Nundef,"[x = 4]")) => ()
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	 | _ => error "rootrateq.sml: diff.behav. in  3/(1+sqrt(x))= 1 -> [x = 4]";
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============ inhibit exn WN120314 ==============================================*)
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"------------ test thm rootrat_equation_right_1 ------------------";
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"------------ test thm rootrat_equation_right_1 ------------------";
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"------------ test thm rootrat_equation_right_1 ------------------";
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val fmz = ["equality ( 0= -2 + 1/(1 - sqrt(x)))", "solveFor x","solutions L"];
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val (dI',pI',mI') = ("RootRatEq",["univariate","equation"],["no_met"]);
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val (p,_,f,nxt,_,pt) = CalcTreeTEST [(fmz, (dI',pI',mI'))];
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 10 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 20 *)
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(*//------------------ ERROR check_elementwise: no set 1 + sqrt x = 3 -----------------------\\* )
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val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 30 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 40 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; 
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( *\\------------------ ERROR check_elementwise: no set 1 + sqrt x = 3 -----------------------//*)
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(*============ inhibit exn WN120314: similar complicated equation, dropped.
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if f = Form' (FormKF (~1, EdUndef, 0, Nundef, "-1 + 4 * x = 0")) then ()
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else error "rootrateq.sml: diff.behav.ppoly in rootrat_equation_right_1";
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val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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case f of Form' (FormKF (~1,EdUndef,0,Nundef,"[x = 1 / 4]")) => ()
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	 | _ => error "rootrateq.sml: diff.behav. in  -2 + 1/(1 - sqrt(x))= 0 -> [x = 1/4]";
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============ inhibit exn WN120314 ==============================================*)
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"------------ test thm rootrat_equation_right_2 ------------------";
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"------------ test thm rootrat_equation_right_2 ------------------";
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"------------ test thm rootrat_equation_right_2 ------------------";
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   294
val fmz = ["equality (1 = 3/(1+sqrt(x)))", "solveFor x","solutions L"];
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val (dI',pI',mI') = ("RootRatEq",["univariate","equation"],["no_met"]);
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val (p,_,f,nxt,_,pt) = CalcTreeTEST [(fmz, (dI',pI',mI'))];
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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(*^^^ 10 *)
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   309
(*//------------------ ERROR rls "make_rooteq " missing in KEStore.
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    after repair (Try (Repeat (Rewrite_Set ''make_rooteq ''))) 
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    ------------------ ERROR check_elementwise: no set 1 + sqrt x = 3 -----------------------\\* )
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(*val (p,_,f,nxt,_,pt) =*) me nxt p c pt;
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"~~~~~ fun me , args:"; val (tac, p, _(*NEW remove*), pt) = (nxt, p, c, pt);
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      val (pt, p) = 
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   315
  	    (*locatetac is here for testing by me; do_next would suffice in me*)
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  	    case locatetac tac (pt, p) of
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   317
  		    ("ok", (_, _, ptp)) => ptp
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  	    | ("unsafe-ok", (_, _, ptp)) => ptp
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  	    | ("not-applicable",_) => (pt, p)
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   320
  	    | ("end-of-calculation", (_, _, ptp)) => ptp
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   321
  	    | ("failure", _) => error "sys-error"
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   322
  	    | _ => error "me: uncovered case locatetac"
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   323
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   324
    (*case*)
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   325
      Step.do_next p ((pt, Pos.e_pos'), []) (*of*);
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   326
"~~~~~ fun do_next , args:"; val ((ip as (_, p_)), (ptp as (pt, p), tacis))
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   327
  = (p, ((pt, Pos.e_pos'), []));
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 val pIopt = Ctree.get_pblID (pt, ip);
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   329
    (*if*) ip = ([], Pos.Res) (*else*);
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   330
      val _ = (*case*) tacis (*of*);
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        val SOME _ = (*case*) pIopt (*of*);
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   332
walther@59803
   333
  	       switch_specify_solve p_ (pt, ip);
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   334
"~~~~~ fun switch_specify_solve , args:"; val (state_pos, (pt, input_pos)) = (p_, (pt, ip));
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   335
      (*if*) member op = [Pos.Pbl, Pos.Met] state_pos (*else*);
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   336
walther@59803
   337
        LI.do_next (pt, input_pos);
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   338
"~~~~~ and do_next , args:"; val (ptp as (pt, pos as (p, p_))) = (pt, input_pos);
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   339
    (*if*) Celem.e_metID = get_obj g_metID pt (par_pblobj pt p) (*else*);
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        val thy' = get_obj g_domID pt (par_pblobj pt p);
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   341
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   342
	      val (_, (ist, ctxt), sc) =
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   343
    LItool.from_pblobj_or_detail' thy' (p,p_) pt;
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   344
"~~~~~ fun from_pblobj_or_detail' , args:"; val (thy, (p, p_), pt) = (thy', (p,p_), pt);
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   345
  (*if*) Pos.on_specification p_ (*else*);
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   346
    val (pbl, p', rls') = par_pbl_det pt p
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   347
    (*if*) pbl (*then*);
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   348
	         val metID = get_obj g_metID pt p'
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   349
(*["RootEq", "solve_sq_root_equation"] found for correction, which caused ERROR 2*)
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   350
walther@59803
   351
(*\\------------------ end ERROR check ------------------------------------------------------//*)
walther@59803
   352
walther@59803
   353
val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   354
(*^^^ 20 *)
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   355
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   356
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   357
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   358
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   359
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
walther@59803
   360
(*^^^ 30 *)
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   361
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   362
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   363
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   364
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   365
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
walther@59803
   366
(*^^^ 40 *)
neuper@37906
   367
val (p,_,f,nxt,_,pt) = me nxt p c pt; 
walther@59803
   368
( *\\------------------ ERROR WN200211 1, 2 -------------------------------------------------//*)
walther@59803
   369
neuper@42393
   370
(*============ inhibit exn WN120314 ==============================================
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   371
if f = Form' (FormKF (~1, EdUndef, 0, Nundef, "-4 + x = 0")) then ()
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   372
else error "rootrateq.sml: diff.behav. in rootrat_equation_right_2";
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   373
val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   374
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
neuper@37906
   375
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   376
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   377
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   378
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
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   379
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
neuper@37906
   380
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
neuper@37906
   381
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
neuper@37906
   382
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
neuper@37906
   383
val (p,_,f,nxt,_,pt) = me nxt p c pt; val (p,_,f,nxt,_,pt) = me nxt p c pt;
neuper@37906
   384
case f of Form' (FormKF (~1,EdUndef,0,Nundef,"[x = 4]")) => ()
neuper@38031
   385
	 | _ => error "rootrateq.sml: diff.behav. in  3/(1+sqrt(x))= 1 -> [x = 4]";
neuper@42393
   386
============ inhibit exn WN120314 ==============================================*)
neuper@42393
   387