Mon, 12 Aug 2013 15:25:17 +0200 clarified option name (since case/fold/rec are also destructors)
blanchet [Mon, 12 Aug 2013 15:25:17 +0200] rev 52969
clarified option name (since case/fold/rec are also destructors)
Mon, 12 Aug 2013 15:25:17 +0200 define case constant from other 'free constructor' axioms
blanchet [Mon, 12 Aug 2013 15:25:17 +0200] rev 52968
define case constant from other 'free constructor' axioms
Mon, 12 Aug 2013 15:25:16 +0200 introduced case tactics
blanchet [Mon, 12 Aug 2013 15:25:16 +0200] rev 52967
introduced case tactics
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