Tue, 04 May 2010 12:30:15 +0200 wenzelm simplified/unified fundamental operations on types/terms/proofterms -- prefer Same.operation over "option" variant;
Tue, 04 May 2010 11:02:50 +0200 wenzelm renamed Proofterm.freezeT to Proofterm.legacy_freezeT (cf. 88756a5a92fc);
Tue, 04 May 2010 10:52:43 +0200 wenzelm specification goal: eliminated redundant Thm.legacy_freezeT -- the goal is properly declared and should always produce fixed types in the result;
Mon, 03 May 2010 22:00:06 +0200 wenzelm UNDISCH/DISJ_CASESL: eliminated slightly odd Thm.legacy_freezeT -- these rules appear to be applied to thms with fixed types only;
Mon, 03 May 2010 20:53:49 +0200 wenzelm replaced Thm.legacy_freezeT by Thm.unvarify_global -- these facts stem from closed definitions, i.e. there are no term Vars;
Mon, 03 May 2010 20:13:36 +0200 wenzelm renamed Thm.freezeT to Thm.legacy_freezeT -- it is based on Type.legacy_freeze;
Mon, 03 May 2010 16:26:47 +0200 wenzelm minor tuning of Thm.strip_shyps -- no longer pervasive;
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