Mon, 17 May 2004 11:02:16 +0200 mehta lemma disjoint_int_union removed - too special
Fri, 14 May 2004 19:29:22 +0200 ballarin Change of theory hierarchy: Group is now based in Lattice.
Fri, 14 May 2004 16:54:13 +0200 paulson tidied
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