Tue, 28 Jun 2011 00:48:57 +0100 Christian Urban proved the fcb also for sets (no restriction yet)
Tue, 28 Jun 2011 00:30:30 +0100 Christian Urban copied all work to Lambda.thy; had to derive a special version of fcb1 for concrete atom
Mon, 27 Jun 2011 22:51:42 +0100 Christian Urban streamlined the fcb-proof and made fcb1 a special case of fcb
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