Fri, 03 Aug 2012 14:46:25 +0200 webertj command_spec antiquotation.
Sun, 15 Jul 2012 13:03:47 +0100 Christian Urban added a simproc for alpha-equivalence to the simplifier
Thu, 12 Jul 2012 10:11:32 +0100 Christian Urban streamlined definition of alpha-equivalence for single binders (used flip instead of swap)
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