Wed, 27 Aug 2008 01:27:33 +0200 | huffman | add lemmas about Rats similar to those about Reals | changeset | files |
Tue, 26 Aug 2008 23:49:46 +0200 | huffman | move real_vector class proofs into vector_space and group_hom locales | changeset | files |
Tue, 26 Aug 2008 18:59:52 +0200 | krauss | added distributivity of relation composition over union [simp] | changeset | files |