Wed, 07 May 2008 10:59:47 +0200 berghofe eq_assumption now uses aeconv instead of aconv.
Wed, 07 May 2008 10:59:46 +0200 berghofe - Removed function eta_contract_atom, which did not quite work
Wed, 07 May 2008 10:59:45 +0200 berghofe Replaced Pattern.eta_contract_atom by Envir.eta_contract.
Wed, 07 May 2008 10:59:44 +0200 berghofe Removed instantiation for set.
Wed, 07 May 2008 10:59:43 +0200 berghofe Explicitely applied ext in proof of tnd.
Wed, 07 May 2008 10:59:42 +0200 berghofe Deleted subset_antisym in a few proofs, because it is
Wed, 07 May 2008 10:59:41 +0200 berghofe - Tuned imports
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