paulson [Wed, 01 May 1996 13:55:20 +0200] rev 1714
Deleted diff_mult_distrib_r as diff_mult_distrib is not proved in Arith.
paulson [Wed, 01 May 1996 13:48:31 +0200] rev 1713
New cancellation and monotonicity laws, about
multiplication and division, from ZF/Arith.
paulson [Wed, 01 May 1996 13:47:21 +0200] rev 1712
Two new "obvious" examples
paulson [Wed, 01 May 1996 10:43:16 +0200] rev 1711
Provides merge_cs to support default clasets
paulson [Wed, 01 May 1996 10:38:14 +0200] rev 1710
Simplified KG's proofs
paulson [Wed, 01 May 1996 10:37:07 +0200] rev 1709
New lemma inspired by KG
paulson [Wed, 01 May 1996 10:35:06 +0200] rev 1708
tidied some proofs
nipkow [Tue, 30 Apr 1996 17:32:29 +0200] rev 1707
Added an equivalence proof which avoids the use of -n->
(with help from Ranan Fraer)
nipkow [Tue, 30 Apr 1996 17:30:54 +0200] rev 1706
Added backwards rtrancl_induct and special versions for pairs.
clasohm [Tue, 30 Apr 1996 13:40:32 +0200] rev 1705
changed ident_no_colon so that it forbids postfix "=", too