Wed, 03 Aug 2011 00:52:41 +0000 urbanc cleaned up the proofs in Myhill_2
Tue, 02 Aug 2011 15:27:37 +0000 urbanc a version of the proof which dispenses with the notion of string-subtraction
Sun, 31 Jul 2011 10:27:41 +0000 urbanc some experiments with the proofs in Myhill_2
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