Tue, 04 Oct 1994 13:02:16 +0100 clasohm made major changes to grammar; Isabelle94-1
Tue, 04 Oct 1994 13:01:17 +0100 clasohm added print_msg;
Tue, 27 Sep 1994 14:23:46 +0100 nipkow Modified termord to take account of the Abs-Abs case.
Mon, 26 Sep 1994 17:56:21 +0100 wenzelm improved expand_typ (now handles TVars);
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