Thu, 30 Dec 1993 10:18:23 +0100 nipkow added subsig: sg * sg -> bool to test if one signature is contained in another.
Wed, 29 Dec 1993 10:14:58 +0100 wenzelm added sys_error;
Wed, 22 Dec 1993 19:01:27 +0100 clasohm fixed a bug in update/next_level which occured when a child wasn't loaded
Tue, 21 Dec 1993 16:40:01 +0100 nipkow added empty type-abbr field to extend_theory
Tue, 21 Dec 1993 16:38:45 +0100 nipkow added []-field to extend_theory: no type abbreviations.
Tue, 21 Dec 1993 16:27:36 +0100 nipkow Added []-field to extend_theory to accomodate type abbreviations.
Tue, 21 Dec 1993 16:26:40 +0100 nipkow Necessary changes to accomodate type abbreviations.
Tue, 21 Dec 1993 14:47:29 +0100 wenzelm pretty_thm is now exported;
Tue, 21 Dec 1993 13:58:12 +0100 lcp new section for equality properties
Tue, 14 Dec 1993 14:02:52 +0100 nipkow Updated read_insts to approximate simultaneous type checking of substitution
Mon, 13 Dec 1993 18:50:03 +0100 lcp added isabelle-users paragraph
Mon, 13 Dec 1993 18:48:47 +0100 lcp added mention of simplifier, splitter, hypsubst
Mon, 13 Dec 1993 18:18:34 +0100 lcp new year
Fri, 10 Dec 1993 13:46:38 +0100 nipkow updated instantiate to deal with type clashes
Fri, 10 Dec 1993 10:39:12 +0100 lcp ZF/equalities/SUM_eq_UN: new
Fri, 10 Dec 1993 10:36:39 +0100 lcp Pure/tactic/compose_inst_tac: when catching exception THM, prints the
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