Sun, 24 Nov 2013 13:22:59 +0100 nipkow replaced bad example
Sun, 24 Nov 2013 00:31:50 +0000 paulson polished some ancient proofs
Sat, 23 Nov 2013 16:41:37 +0000 paulson merged
Sat, 23 Nov 2013 16:39:48 +0000 paulson Simplified, tidied and generalised proofs esp of Binomial Theorem.
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