Fri, 27 Apr 2012 22:36:27 +0200 blanchet use Nitpick as an oracle for finite problems
Fri, 27 Apr 2012 22:36:27 +0200 blanchet add extensionality to first-order provers
Fri, 27 Apr 2012 22:36:27 +0200 blanchet avoid duplicate helpers
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