src/Tools/isac/Knowledge/EqSystem.thy
branchisac-update-Isa09-2
changeset 37995 fac82f29f143
parent 37991 028442673981
child 37997 8721c71fe3a3
     1.1 --- a/src/Tools/isac/Knowledge/EqSystem.thy	Wed Sep 08 17:20:03 2010 +0200
     1.2 +++ b/src/Tools/isac/Knowledge/EqSystem.thy	Wed Sep 08 17:49:36 2010 +0200
     1.3 @@ -415,28 +415,28 @@
     1.4  store_pbt
     1.5   (prep_pbt thy "pbl_equsys" [] e_pblID
     1.6   (["system"],
     1.7 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
     1.8 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
     1.9     ("#Find"  ,["solution ss___"](*___ is copy-named*))
    1.10    ],
    1.11    append_rls "e_rls" e_rls [(*for preds in where_*)], 
    1.12 -  SOME "solveSystem es_ vs_", 
    1.13 +  SOME "solveSystem es_ v_s", 
    1.14    []));
    1.15  store_pbt
    1.16   (prep_pbt thy "pbl_equsys_lin" [] e_pblID
    1.17   (["linear", "system"],
    1.18 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
    1.19 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
    1.20     (*TODO.WN050929 check linearity*)
    1.21     ("#Find"  ,["solution ss___"])
    1.22    ],
    1.23    append_rls "e_rls" e_rls [(*for preds in where_*)], 
    1.24 -  SOME "solveSystem es_ vs_", 
    1.25 +  SOME "solveSystem es_ v_s", 
    1.26    []));
    1.27  store_pbt
    1.28   (prep_pbt thy "pbl_equsys_lin_2x2" [] e_pblID
    1.29   (["2x2", "linear", "system"],
    1.30    (*~~~~~~~~~~~~~~~~~~~~~~~~~*)
    1.31 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
    1.32 -   ("#Where"  ,["length_ (es_:: bool list) = 2", "length_ vs_ = 2"]),
    1.33 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
    1.34 +   ("#Where"  ,["length_ (es_:: bool list) = 2", "length_ v_s = 2"]),
    1.35     ("#Find"  ,["solution ss___"])
    1.36    ],
    1.37    append_rls "prls_2x2_linear_system" e_rls 
    1.38 @@ -445,35 +445,35 @@
    1.39  			      Calc ("op +", eval_binop "#add_"),
    1.40  			      Calc ("op =",eval_equal "#equal_")
    1.41  			      ], 
    1.42 -  SOME "solveSystem es_ vs_", 
    1.43 +  SOME "solveSystem es_ v_s", 
    1.44    []));
    1.45  store_pbt
    1.46   (prep_pbt thy "pbl_equsys_lin_2x2_tri" [] e_pblID
    1.47   (["triangular", "2x2", "linear", "system"],
    1.48 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
    1.49 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
    1.50     ("#Where"  ,
    1.51 -    ["(tl vs_) from_ vs_ occur_exactly_in (nth_ 1 (es_::bool list))",
    1.52 -     "    vs_  from_ vs_ occur_exactly_in (nth_ 2 (es_::bool list))"]),
    1.53 +    ["(tl v_s) from_ v_s occur_exactly_in (nth_ 1 (es_::bool list))",
    1.54 +     "    v_s  from_ v_s occur_exactly_in (nth_ 2 (es_::bool list))"]),
    1.55     ("#Find"  ,["solution ss___"])
    1.56    ],
    1.57    prls_triangular, 
    1.58 -  SOME "solveSystem es_ vs_", 
    1.59 +  SOME "solveSystem es_ v_s", 
    1.60    [["EqSystem","top_down_substitution","2x2"]]));
    1.61  store_pbt
    1.62   (prep_pbt thy "pbl_equsys_lin_2x2_norm" [] e_pblID
    1.63   (["normalize", "2x2", "linear", "system"],
    1.64 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
    1.65 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
    1.66     ("#Find"  ,["solution ss___"])
    1.67    ],
    1.68    append_rls "e_rls" e_rls [(*for preds in where_*)], 
    1.69 -  SOME "solveSystem es_ vs_", 
    1.70 +  SOME "solveSystem es_ v_s", 
    1.71    [["EqSystem","normalize","2x2"]]));
    1.72  store_pbt
    1.73   (prep_pbt thy "pbl_equsys_lin_3x3" [] e_pblID
    1.74   (["3x3", "linear", "system"],
    1.75    (*~~~~~~~~~~~~~~~~~~~~~~~~~*)
    1.76 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
    1.77 -   ("#Where"  ,["length_ (es_:: bool list) = 3", "length_ vs_ = 3"]),
    1.78 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
    1.79 +   ("#Where"  ,["length_ (es_:: bool list) = 3", "length_ v_s = 3"]),
    1.80     ("#Find"  ,["solution ss___"])
    1.81    ],
    1.82    append_rls "prls_3x3_linear_system" e_rls 
    1.83 @@ -482,14 +482,14 @@
    1.84  			      Calc ("op +", eval_binop "#add_"),
    1.85  			      Calc ("op =",eval_equal "#equal_")
    1.86  			      ], 
    1.87 -  SOME "solveSystem es_ vs_", 
    1.88 +  SOME "solveSystem es_ v_s", 
    1.89    []));
    1.90  store_pbt
    1.91   (prep_pbt thy "pbl_equsys_lin_4x4" [] e_pblID
    1.92   (["4x4", "linear", "system"],
    1.93    (*~~~~~~~~~~~~~~~~~~~~~~~~~*)
    1.94 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
    1.95 -   ("#Where"  ,["length_ (es_:: bool list) = 4", "length_ vs_ = 4"]),
    1.96 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
    1.97 +   ("#Where"  ,["length_ (es_:: bool list) = 4", "length_ v_s = 4"]),
    1.98     ("#Find"  ,["solution ss___"])
    1.99    ],
   1.100    append_rls "prls_4x4_linear_system" e_rls 
   1.101 @@ -498,34 +498,34 @@
   1.102  			      Calc ("op +", eval_binop "#add_"),
   1.103  			      Calc ("op =",eval_equal "#equal_")
   1.104  			      ], 
   1.105 -  SOME "solveSystem es_ vs_", 
   1.106 +  SOME "solveSystem es_ v_s", 
   1.107    []));
   1.108  store_pbt
   1.109   (prep_pbt thy "pbl_equsys_lin_4x4_tri" [] e_pblID
   1.110   (["triangular", "4x4", "linear", "system"],
   1.111 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
   1.112 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
   1.113     ("#Where" , (*accepts missing variables up to diagional form*)
   1.114 -    ["(nth_ 1 (vs_::real list)) occurs_in (nth_ 1 (es_::bool list))",
   1.115 -     "(nth_ 2 (vs_::real list)) occurs_in (nth_ 2 (es_::bool list))",
   1.116 -     "(nth_ 3 (vs_::real list)) occurs_in (nth_ 3 (es_::bool list))",
   1.117 -     "(nth_ 4 (vs_::real list)) occurs_in (nth_ 4 (es_::bool list))"
   1.118 +    ["(nth_ 1 (v_s::real list)) occurs_in (nth_ 1 (es_::bool list))",
   1.119 +     "(nth_ 2 (v_s::real list)) occurs_in (nth_ 2 (es_::bool list))",
   1.120 +     "(nth_ 3 (v_s::real list)) occurs_in (nth_ 3 (es_::bool list))",
   1.121 +     "(nth_ 4 (v_s::real list)) occurs_in (nth_ 4 (es_::bool list))"
   1.122       ]),
   1.123     ("#Find"  ,["solution ss___"])
   1.124    ],
   1.125    append_rls "prls_tri_4x4_lin_sys" prls_triangular
   1.126  	     [Calc ("Atools.occurs'_in",eval_occurs_in "")], 
   1.127 -  SOME "solveSystem es_ vs_", 
   1.128 +  SOME "solveSystem es_ v_s", 
   1.129    [["EqSystem","top_down_substitution","4x4"]]));
   1.130  
   1.131  store_pbt
   1.132   (prep_pbt thy "pbl_equsys_lin_4x4_norm" [] e_pblID
   1.133   (["normalize", "4x4", "linear", "system"],
   1.134 -  [("#Given" ,["equalities es_", "solveForVars vs_"]),
   1.135 +  [("#Given" ,["equalities es_", "solveForVars v_s"]),
   1.136     (*length_ is checked 1 level above*)
   1.137     ("#Find"  ,["solution ss___"])
   1.138    ],
   1.139    append_rls "e_rls" e_rls [(*for preds in where_*)], 
   1.140 -  SOME "solveSystem es_ vs_", 
   1.141 +  SOME "solveSystem es_ v_s", 
   1.142    [["EqSystem","normalize","4x4"]]));
   1.143  
   1.144  
   1.145 @@ -553,10 +553,10 @@
   1.146  store_met
   1.147      (prep_met thy "met_eqsys_topdown_2x2" [] e_metID
   1.148  	 (["EqSystem","top_down_substitution","2x2"],
   1.149 -	  [("#Given" ,["equalities es_", "solveForVars vs_"]),
   1.150 +	  [("#Given" ,["equalities es_", "solveForVars v_s"]),
   1.151  	   ("#Where"  ,
   1.152 -	    ["(tl vs_) from_ vs_ occur_exactly_in (nth_ 1 (es_::bool list))",
   1.153 -	     "    vs_  from_ vs_ occur_exactly_in (nth_ 2 (es_::bool list))"]),
   1.154 +	    ["(tl v_s) from_ v_s occur_exactly_in (nth_ 1 (es_::bool list))",
   1.155 +	     "    v_s  from_ v_s occur_exactly_in (nth_ 2 (es_::bool list))"]),
   1.156  	   ("#Find"  ,["solution ss___"])
   1.157  	   ],
   1.158  	  {rew_ord'="ord_simplify_System", rls' = Erls, calc = [], 
   1.159 @@ -566,19 +566,19 @@
   1.160  				   Thm ("tl_Nil",num_str @{thm tl_Nil})
   1.161  				   ], 
   1.162  	   prls = prls_triangular, crls = Erls, nrls = Erls},
   1.163 -"Script SolveSystemScript (es_::bool list) (vs_::real list) =                " ^
   1.164 +"Script SolveSystemScript (es_::bool list) (v_s::real list) =                " ^
   1.165  "  (let e1__ = Take (hd es_);                                                " ^
   1.166 -"       e1__ = ((Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.167 +"       e1__ = ((Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.168  "                                  isolate_bdvs False))     @@               " ^
   1.169 -"               (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.170 +"               (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.171  "                                  simplify_System False))) e1__;            " ^
   1.172  "       e2__ = Take (hd (tl es_));                                           " ^
   1.173  "       e2__ = ((Substitute [e1__]) @@                                       " ^
   1.174 -"               (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.175 +"               (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.176  "                                  simplify_System_parenthesized False)) @@  " ^
   1.177 -"               (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.178 +"               (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.179  "                                  isolate_bdvs False))     @@               " ^
   1.180 -"               (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.181 +"               (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.182  "                                  simplify_System False))) e2__;            " ^
   1.183  "       es__ = Take [e1__, e2__]                                             " ^
   1.184  "   in (Try (Rewrite_Set order_system False)) es__)"
   1.185 @@ -587,16 +587,16 @@
   1.186    but it does not yet work due to preliminary script-interpreter,
   1.187    see eqsystem.sml 'script [EqSystem,top_down_substitution,2x2] Vers.2'
   1.188  
   1.189 -"Script SolveSystemScript (es_::bool list) (vs_::real list) =         " ^
   1.190 +"Script SolveSystemScript (es_::bool list) (v_s::real list) =         " ^
   1.191  "  (let es__ = Take es_;                                              " ^
   1.192  "       e1__ = hd es__;                                               " ^
   1.193  "       e2__ = hd (tl es__);                                          " ^
   1.194  "       es__ = [e1__, Substitute [e1__] e2__]                         " ^
   1.195 -"   in ((Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.196 +"   in ((Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.197  "                                  simplify_System_parenthesized False)) @@ " ^
   1.198 -"       (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))] " ^
   1.199 +"       (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))] " ^
   1.200  "                              isolate_bdvs False))              @@   " ^
   1.201 -"       (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.202 +"       (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.203  "                                  simplify_System False))) es__)"
   1.204  ---------------------------------------------------------------------------*)
   1.205  	  ));
   1.206 @@ -611,7 +611,7 @@
   1.207  store_met
   1.208      (prep_met thy "met_eqsys_norm_2x2" [] e_metID
   1.209  	      (["EqSystem","normalize","2x2"],
   1.210 -	       [("#Given" ,["equalities es_", "solveForVars vs_"]),
   1.211 +	       [("#Given" ,["equalities es_", "solveForVars v_s"]),
   1.212  		("#Find"  ,["solution ss___"])],
   1.213  	       {rew_ord'="tless_true", rls' = Erls, calc = [], 
   1.214  		srls = append_rls "srls_normalize_2x2" e_rls
   1.215 @@ -620,17 +620,17 @@
   1.216  				   Thm ("tl_Nil",num_str @{thm tl_Nil})
   1.217  				   ], 
   1.218  		prls = Erls, crls = Erls, nrls = Erls},
   1.219 -"Script SolveSystemScript (es_::bool list) (vs_::real list) =                " ^
   1.220 +"Script SolveSystemScript (es_::bool list) (v_s::real list) =                " ^
   1.221  "  (let es__ = ((Try (Rewrite_Set norm_Rational False)) @@                   " ^
   1.222 -"               (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.223 +"               (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.224  "                                  simplify_System_parenthesized False)) @@  " ^
   1.225 -"               (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.226 +"               (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.227  "                                                    isolate_bdvs False)) @@ " ^
   1.228 -"               (Try (Rewrite_Set_Inst [(bdv_1, hd vs_),(bdv_2, hd (tl vs_))]" ^
   1.229 +"               (Try (Rewrite_Set_Inst [(bdv_1, hd v_s),(bdv_2, hd (tl v_s))]" ^
   1.230  "                                  simplify_System_parenthesized False)) @@  " ^
   1.231  "               (Try (Rewrite_Set order_system False))) es_                  " ^
   1.232  "   in (SubProblem (EqSystem_,[linear,system],[no_met])                      " ^
   1.233 -"                  [BOOL_LIST es__, REAL_LIST vs_]))"
   1.234 +"                  [BOOL_LIST es__, REAL_LIST v_s]))"
   1.235  	       ));
   1.236  
   1.237  (*this is for nth_ only*)
   1.238 @@ -651,7 +651,7 @@
   1.239  store_met
   1.240      (prep_met thy "met_eqsys_norm_4x4" [] e_metID
   1.241  	      (["EqSystem","normalize","4x4"],
   1.242 -	       [("#Given" ,["equalities es_", "solveForVars vs_"]),
   1.243 +	       [("#Given" ,["equalities es_", "solveForVars v_s"]),
   1.244  		("#Find"  ,["solution ss___"])],
   1.245  	       {rew_ord'="tless_true", rls' = Erls, calc = [], 
   1.246  		srls = append_rls "srls_normalize_4x4" srls
   1.247 @@ -661,32 +661,32 @@
   1.248  				   ], 
   1.249  		prls = Erls, crls = Erls, nrls = Erls},
   1.250  (*GOON met ["EqSystem","normalize","4x4"] @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*)
   1.251 -"Script SolveSystemScript (es_::bool list) (vs_::real list) =                " ^
   1.252 +"Script SolveSystemScript (es_::bool list) (v_s::real list) =                " ^
   1.253  "  (let es__ =                                                               " ^
   1.254  "     ((Try (Rewrite_Set norm_Rational False)) @@                            " ^
   1.255  "      (Repeat (Rewrite commute_0_equality False)) @@                        " ^
   1.256 -"      (Try (Rewrite_Set_Inst [(bdv_1, nth_ 1 vs_),(bdv_2, nth_ 2 vs_ ),     " ^
   1.257 -"                              (bdv_3, nth_ 3 vs_),(bdv_3, nth_ 4 vs_ )]     " ^
   1.258 +"      (Try (Rewrite_Set_Inst [(bdv_1, nth_ 1 v_s),(bdv_2, nth_ 2 v_s ),     " ^
   1.259 +"                              (bdv_3, nth_ 3 v_s),(bdv_3, nth_ 4 v_s )]     " ^
   1.260  "                             simplify_System_parenthesized False))    @@    " ^
   1.261 -"      (Try (Rewrite_Set_Inst [(bdv_1, nth_ 1 vs_),(bdv_2, nth_ 2 vs_ ),     " ^
   1.262 -"                              (bdv_3, nth_ 3 vs_),(bdv_3, nth_ 4 vs_ )]     " ^
   1.263 +"      (Try (Rewrite_Set_Inst [(bdv_1, nth_ 1 v_s),(bdv_2, nth_ 2 v_s ),     " ^
   1.264 +"                              (bdv_3, nth_ 3 v_s),(bdv_3, nth_ 4 v_s )]     " ^
   1.265  "                             isolate_bdvs_4x4 False))                 @@    " ^
   1.266 -"      (Try (Rewrite_Set_Inst [(bdv_1, nth_ 1 vs_),(bdv_2, nth_ 2 vs_ ),     " ^
   1.267 -"                              (bdv_3, nth_ 3 vs_),(bdv_3, nth_ 4 vs_ )]     " ^
   1.268 +"      (Try (Rewrite_Set_Inst [(bdv_1, nth_ 1 v_s),(bdv_2, nth_ 2 v_s ),     " ^
   1.269 +"                              (bdv_3, nth_ 3 v_s),(bdv_3, nth_ 4 v_s )]     " ^
   1.270  "                             simplify_System_parenthesized False))    @@    " ^
   1.271  "      (Try (Rewrite_Set order_system False)))                           es_ " ^
   1.272  "   in (SubProblem (EqSystem_,[linear,system],[no_met])                      " ^
   1.273 -"                  [BOOL_LIST es__, REAL_LIST vs_]))"
   1.274 +"                  [BOOL_LIST es__, REAL_LIST v_s]))"
   1.275  ));
   1.276  store_met
   1.277  (prep_met thy "met_eqsys_topdown_4x4" [] e_metID
   1.278  	  (["EqSystem","top_down_substitution","4x4"],
   1.279 -	   [("#Given" ,["equalities es_", "solveForVars vs_"]),
   1.280 +	   [("#Given" ,["equalities es_", "solveForVars v_s"]),
   1.281  	    ("#Where" , (*accepts missing variables up to diagonal form*)
   1.282 -	     ["(nth_ 1 (vs_::real list)) occurs_in (nth_ 1 (es_::bool list))",
   1.283 -	      "(nth_ 2 (vs_::real list)) occurs_in (nth_ 2 (es_::bool list))",
   1.284 -	      "(nth_ 3 (vs_::real list)) occurs_in (nth_ 3 (es_::bool list))",
   1.285 -	      "(nth_ 4 (vs_::real list)) occurs_in (nth_ 4 (es_::bool list))"
   1.286 +	     ["(nth_ 1 (v_s::real list)) occurs_in (nth_ 1 (es_::bool list))",
   1.287 +	      "(nth_ 2 (v_s::real list)) occurs_in (nth_ 2 (es_::bool list))",
   1.288 +	      "(nth_ 3 (v_s::real list)) occurs_in (nth_ 3 (es_::bool list))",
   1.289 +	      "(nth_ 4 (v_s::real list)) occurs_in (nth_ 4 (es_::bool list))"
   1.290  	      ]),
   1.291  	    ("#Find"  ,["solution ss___"])
   1.292  	    ],
   1.293 @@ -696,18 +696,18 @@
   1.294  			      [Calc ("Atools.occurs'_in",eval_occurs_in "")], 
   1.295  	    crls = Erls, nrls = Erls},
   1.296  (*FIXXXXME.WN060916: this script works ONLY for exp 7.79 @@@@@@@@@@@@@@@@@@@@*)
   1.297 -"Script SolveSystemScript (es_::bool list) (vs_::real list) =                " ^
   1.298 +"Script SolveSystemScript (es_::bool list) (v_s::real list) =                " ^
   1.299  "  (let e1_ = nth_ 1 es_;                                                    " ^
   1.300  "       e2_ = Take (nth_ 2 es_);                                             " ^
   1.301  "       e2_ = ((Substitute [e1_]) @@                                         " ^
   1.302 -"              (Try (Rewrite_Set_Inst [(bdv_1,nth_ 1 vs_),(bdv_2,nth_ 2 vs_)," ^
   1.303 -"                                      (bdv_3,nth_ 3 vs_),(bdv_4,nth_ 4 vs_)]" ^
   1.304 +"              (Try (Rewrite_Set_Inst [(bdv_1,nth_ 1 v_s),(bdv_2,nth_ 2 v_s)," ^
   1.305 +"                                      (bdv_3,nth_ 3 v_s),(bdv_4,nth_ 4 v_s)]" ^
   1.306  "                                 simplify_System_parenthesized False)) @@   " ^
   1.307 -"              (Try (Rewrite_Set_Inst [(bdv_1,nth_ 1 vs_),(bdv_2,nth_ 2 vs_)," ^
   1.308 -"                                      (bdv_3,nth_ 3 vs_),(bdv_4,nth_ 4 vs_)]" ^
   1.309 +"              (Try (Rewrite_Set_Inst [(bdv_1,nth_ 1 v_s),(bdv_2,nth_ 2 v_s)," ^
   1.310 +"                                      (bdv_3,nth_ 3 v_s),(bdv_4,nth_ 4 v_s)]" ^
   1.311  "                                 isolate_bdvs False))                  @@   " ^
   1.312 -"              (Try (Rewrite_Set_Inst [(bdv_1,nth_ 1 vs_),(bdv_2,nth_ 2 vs_)," ^
   1.313 -"                                      (bdv_3,nth_ 3 vs_),(bdv_4,nth_ 4 vs_)]" ^
   1.314 +"              (Try (Rewrite_Set_Inst [(bdv_1,nth_ 1 v_s),(bdv_2,nth_ 2 v_s)," ^
   1.315 +"                                      (bdv_3,nth_ 3 v_s),(bdv_4,nth_ 4 v_s)]" ^
   1.316  "                                 norm_Rational False)))             e2_     " ^
   1.317  "    in [e1_, e2_, nth_ 3 es_, nth_ 4 es_])"
   1.318  ));