Wed, 03 Nov 2010 12:20:33 +0100 haftmann moved theory Quicksort from Library/ to ex/
Wed, 03 Nov 2010 12:20:33 +0100 haftmann Theory Multiset provides stable quicksort implementation of sort_key.
Wed, 03 Nov 2010 12:15:47 +0100 haftmann added code lemmas for stable parametrized quicksort
Wed, 03 Nov 2010 11:50:29 +0100 haftmann tuned proof
Thu, 04 Nov 2010 09:53:23 +0100 blanchet moved file in makefile to reflect actual dependencies
Wed, 03 Nov 2010 23:01:30 +0100 blanchet give E one more second, to prevent cases where it finds a proof but has no time to print it
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