Wed, 01 Nov 2006 15:51:11 +0100 clauses for iff-introduction, unfortunately useless
paulson [Wed, 01 Nov 2006 15:51:11 +0100] rev 21137
clauses for iff-introduction, unfortunately useless
Wed, 01 Nov 2006 15:50:19 +0100 tuned
urbanc [Wed, 01 Nov 2006 15:50:19 +0100] rev 21136
tuned
Wed, 01 Nov 2006 15:49:43 +0100 Numerous cosmetic changes.
paulson [Wed, 01 Nov 2006 15:49:43 +0100] rev 21135
Numerous cosmetic changes. Use of ---> notation for types. Added rules for the introduction of the iff connective, but they are too prolific to be useful.
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