updated;

Retrieve theorems from proof context -- improved version of thms_containing by Rafal Kolanski, NICTA;

added Pure/simplifier.ML, Pure/Isar/find_theorems.ML;

moved everything related to thms_containing to find_theorems.ML; export is_known; added fact_index_of, valid_thms; gen_read': removed unused dummies option; declare_term(_syntax): canonical argument order; removed declare_terms(_syntax);

added reserved;

added ident_with;

fold ProofContext.declare_term;

added 'print_simpset'; tuned 'thms_containing'; removed 'print_intros';

added print_simpset; renamed print_thms_containing to find_theorems; removed print_intros (superceded by find_theorems intro);

added find_theorems.ML, ../simplifier.ML;

tuned terms_of_tpairs;

added string_of_thmref, selections, fact_index_of, valid_thms; moved find_matching_thms, is_matching_thm, find_intros/intros_goal/elims to Isar/find_theorems.ML; tuned

FindTheorems.print_theorems;

findI/Es/E: adapted to FindTheorems.find_XXX, results use thmref instead of string;

major tuning;

Simplifier already setup in Pure;

tuned antiquotations;

tuned thms_containing;

tuned;

moved to Pure;

moved here from Provers; removed find_rewrites (superceded by find_theorems rewrite); outer syntax moved to Pure/Isar/isar_syn.ML;

removed find_rewrites (superceded by improved thms_containing);

bug fixes for clause form transformation

converted some problems to Isar format

subst again

Skolemization of simprules and classical rules

pcpo instance for type unit

lucas - bugfix to subst in assumptions: fixed index error for conditional rules.

shortened proof of adm_disj

cleaned up and shortened some proofs

lucas - fixed subst in assumptions to count redexes from left to right.

removed update_node, which is just an instance of map_node; tuned;

tuned;

updated;

searching for combination of criteria (intro, elim, dest, name, pattern)

made para on searching more readable

new cnf function taking Skolemization theorems as an extra argument

consolidation and simplification

documented new thms_containing ('rewrites' still missing)

documented new subst

proper Id line;

updated;

var_or_skolem: always print question mark for vars stemming from skolems;

added read_variable: optional question mark on input; removed obsolete token_assoc; scan_indexname: improved treatment of \<^isub> and \<^isup>; read_var: more robust against bad input; tuned;

substantial tuning -- adapted to common conventions;

re-init ml_prompts after loop termination;

renamed show_var_qmarks to show_question_marks; renamed TermStyle.lookup_style to TermStyle.the_style;

Syntax.read_variable;

renamed show_var_qmarks to show_question_marks; string_of_vname: improved treatment of \<^isub> and \<^isup>;

renamed show_var_qmarks to show_question_marks; var_or_skolem: proper treatment of show_question_marks via Syntax.read_variable;

updated;

renamed show_var_qmarks to show_question_marks;

removed ISAMODE settings;

no longer support isa-FOO interface; removed Isamode; tuned;

no longer support isa-FOO interface;

tuned;

obsolete;

added comment

streamlined proof using new subst method

moved credit to CONTRIBUTORS;