TODO.md
author wneuper <Walther.Neuper@jku.at>
Wed, 20 Jul 2022 11:48:38 +0200
changeset 60484 e5fe5b40a1b4
parent 60466 ab2fc987bbb5
child 60485 c14f2538095c
permissions -rw-r--r--
investigate Outer_Syntax.command \<^command_keyword>?problem?
     1 * MW: make Outer_Syntax.command \<^command_keyword>\<open>problem\<close> a model for ..\<open>Example\<close>
     2   An ML syntax error should be indicated in place (in the string after \<^keyword>\<open>Given\<close> etc)
     3   and not on the definition as a whole. 
     4     This however is not the case despite there is no ISAC code involved.
     5     Reproducible e.g. at https://hg.risc.uni-linz.ac.at/wneuper/isa/file/9c2e1efe5cde/src/Tools/isac/Knowledge/Biegelinie.thy#l108
     6     The respective improvement would be the model for WN continuing ..\<open>Example\<close>. 
     7 
     8 * MW: check uses of Unsynchronized.ref vs. Synchronized.var;
     9 
    10 * MW: clarify/eliminate Isabelle/Scala add-ons (presently unused)
    11 
    12     diff -r /home/makarius/isabelle/repos-Isabelle2021/src/Pure/build-jars ./src/Pure/build-jars
    13     11a12
    14     >   src/Tools/isac/BridgeJEdit/isac.scala
    15 
    16     diff -r /home/makarius/isabelle/repos-Isabelle2021/src/Pure/Tools/scala_project.scala ./src/Pure/Tools/scala_project.scala
    17     76a77
    18     >       "src/Tools/isac/etc" -> Path.explode("isabelle.isac"),
    19 
    20 * Eliminate Thy_Info.get_theory eventually: should take theory from ancestory
    21   within current context.
    22     cf. e587c45cae0f note in Build_Thydata.thy
    23 
    24 * Clarify symmetric rule: Thm.apply_attribute Calculation.symmetric thm context (!?);
    25     ??
    26 
    27 * KEStore_Elems: Should we eliminate union_overwrite and use standard namespace merge?
    28   (Exception: rlss with its special cross-theory merge.)
    29     ? how adapt the different signatures ?
    30     union_overwrite: ('a * 'a -> bool) -> 'a list -> 'a list -> 'a list
    31     merge          : ('a * 'a -> bool) -> 'a list * 'a list -> 'a list
    32 
    33 * What is the purpose of "#numeral" instead of plain numeral?
    34     ??
    35 
    36 * Check/clarify Context.theory_name vs. Context.theory_long_name.
    37     present ISAC assumes 2 sessions in the MathEngine, Specify and Interpret, 
    38     and all Isac_Knowledge is in session Isac.
    39     So Context.theory_name suffices
    40 
    41 * Eliminate mutable Rewrite_Ord.rew_ord' (!?);
    42     shall be done in connection with cf. e587c45cae0f note in Build_Thydata.thy
    43 
    44 * What is the idea behind KEStore_Elems.add_thes? How to do it properly in current Isabelle?
    45     https://static.miraheze.org/isacwiki/0/04/Isac-docu.pdf distinguishes 
    46     several kinds of ISAC users, in particular "math author (Mathematik-Autor)" and
    47     "course designer (Kurs-Designer)". The latter just adds examples which re-use existing
    48     knowledge designed by the former. KEStore_Elems.add_thes is an interface for the latter.   
    49 
    50 * WN: proper ML antiquotations for "Tactical.Try" etc. --- be careful about unclear situations,
    51   e.g. "Tactical.Try" vs. "Lucas_Interpreter.Try";
    52 
    53 * WN: Avoid Thm.get_name_hint and use Global_Theory.get_thm instead, get theory from References.T
    54     and push theory through as argument of respective functions.
    55 
    56 * WN: more direct logical foundations wrt. Isabelle/HOL, eliminate many axiomatizations
    57     - quite often "axiomatization ..." can be turned into "lemma ... by auto"
    58       without further ado;
    59     - sometimes this requires to use more specific types / type classes;
    60     - sometimes this requires to use proper definitional mechanisms (e.g. 'primrec', 'fun');
    61     - a few "hard" cases will remain, to be reconsidered eventually (e.g. differentiation);
    62 
    63 * WN: "fun pr_ord" is not required if used with @{make_string}, @{print}, @{print tracing};
    64     takes only static arguments ----------------^^^^^^^^^^^^^^, not value of "hd_ord (f, g)"
    65     ? are there better approximations to old output of (*1*) than with (*2*)
    66     (*1*)val _ = tracing ("hd_ord (f, g)      = " ^ ((pr_ord o hd_ord) (f, g)) );
    67     (*2*)val _ = @{print tracing}{a = "hd_ord (f, g)      = ", z = hd_ord (f, g)}(**)
    68 
    69 
    70 * WN: eliminate global flags like "trace_on", replace Unsynchronized.ref by
    71 
    72 ML \<open>
    73   val rewrite_trace = Attrib.setup_config_bool \<^binding>\<open>rewrite_trace\<close> (K false);
    74 \<close>
    75 
    76 * WN: redesign transition from Specification to Solution: how relate 
    77     - Formalise.model with variants (e.g. VSCode_Example)
    78       reconsider separation of variants F_I, F_II, see MAWEN paper
    79     - !?! I_Model of MethodC          (fairly free sequence, dependent on Formalise.model)
    80     - !?! formal arguments of program (fixed sequence)
    81