TODO.md
author wneuper <walther.neuper@jku.at>
Mon, 13 Sep 2021 16:01:48 +0200
changeset 60400 2d97d160a183
parent 60382 3e3480647439
child 60424 c3acf9c442ac
permissions -rw-r--r--
cleanup TOODOOs from eliminate ThmC.numerals_to_Free
     1 * MW: check uses of Unsynchronized.ref vs. Synchronized.var;
     2 
     3 * MW: clarify/eliminate Isabelle/Scala add-ons (presently unused)
     4 
     5     diff -r /home/makarius/isabelle/repos-Isabelle2021/src/Pure/build-jars ./src/Pure/build-jars
     6     11a12
     7     >   src/Tools/isac/BridgeJEdit/isac.scala
     8 
     9     diff -r /home/makarius/isabelle/repos-Isabelle2021/src/Pure/Tools/scala_project.scala ./src/Pure/Tools/scala_project.scala
    10     76a77
    11     >       "src/Tools/isac/etc" -> Path.explode("isabelle.isac"),
    12 
    13 * Eliminate Thy_Info.get_theory eventually: should take theory from ancestory
    14   within current context.
    15     cf. e587c45cae0f note in Build_Thydata.thy
    16 
    17 * Clarify symmetric rule: Thm.apply_attribute Calculation.symmetric thm context (!?);
    18     ??
    19 
    20 * KEStore_Elems: Should we eliminate union_overwrite and use standard namespace merge?
    21   (Exception: rlss with its special cross-theory merge.)
    22     ? how adapt the different signatures ?
    23     union_overwrite: ('a * 'a -> bool) -> 'a list -> 'a list -> 'a list
    24     merge          : ('a * 'a -> bool) -> 'a list * 'a list -> 'a list
    25 
    26 * What is the purpose of "#numeral" instead of plain numeral?
    27     ??
    28 
    29 * Check/clarify Context.theory_name vs. Context.theory_long_name.
    30     present ISAC assumes 2 sessions in the MathEngine, Specify and Interpret, 
    31     and all Isac_Knowledge is in session Isac.
    32     So Context.theory_name suffices
    33 
    34 * Eliminate mutable Rewrite_Ord.rew_ord' (!?);
    35     shall be done in connection with cf. e587c45cae0f note in Build_Thydata.thy
    36 
    37 * What is the idea behind KEStore_Elems.add_thes? How to do it properly in current Isabelle?
    38     https://static.miraheze.org/isacwiki/0/04/Isac-docu.pdf distinguishes 
    39     several kinds of ISAC users, in particular "math author (Mathematik-Autor)" and
    40     "course designer (Kurs-Designer)". The latter just adds examples which re-use existing
    41     knowledge designed by the former. KEStore_Elems.add_thes is an interface for the latter.   
    42 
    43 * WN: proper ML antiquotations for "Tactical.Try" etc. --- be careful about unclear situations,
    44   e.g. "Tactical.Try" vs. "Lucas_Interpreter.Try";
    45 
    46 * WN: Avoid Thm.get_name_hint and use Global_Theory.get_thm instead, get theory from References.T
    47     and push theory through as argument of respective functions.
    48 
    49 * WN: more direct logical foundations wrt. Isabelle/HOL, eliminate many axiomatizations
    50     - quite often "axiomatization ..." can be turned into "lemma ... by auto"
    51       without further ado;
    52     - sometimes this requires to use more specific types / type classes;
    53     - sometimes this requires to use proper definitional mechanisms (e.g. 'primrec', 'fun');
    54     - a few "hard" cases will remain, to be reconsidered eventually (e.g. differentiation);
    55 
    56 * WN: "fun pr_ord" is not required if used with @{make_string}, @{print}, @{print tracing};
    57     takes only static arguments ----------------^^^^^^^^^^^^^^, not value of "hd_ord (f, g)"
    58     ? are there better approximations to old output of (*1*) than with (*2*)
    59     (*1*)val _ = tracing ("hd_ord (f, g)      = " ^ ((pr_ord o hd_ord) (f, g)) );
    60     (*2*)val _ = @{print tracing}{a = "hd_ord (f, g)      = ", z = hd_ord (f, g)}(**)
    61 
    62 * WN: reduce the number of TermC.parse*;
    63   + 0d22a6bf1fc6 was too much for 1 changeset
    64   + first parse with ctxt in Specify (O_Model.init shall return a context,..) etc
    65 
    66 
    67 * WN: eliminate global flags like "trace_on", replace Unsynchronized.ref by
    68 
    69 ML \<open>
    70   val rewrite_trace = Attrib.setup_config_bool \<^binding>\<open>rewrite_trace\<close> (K false);
    71 \<close>