src/HOL/Library/Boolean_Algebra.thy
Tue, 21 Aug 2007 20:53:37 +0200 huffman declare conj_absorb [simp]
Mon, 20 Aug 2007 20:38:32 +0200 huffman cleaned up; declared more simp rules
Mon, 20 Aug 2007 00:22:18 +0200 kleing boolean algebras as locales and numbers as types by Brian Huffman
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