Thu, 26 Sep 2013 13:37:33 +0200 Added symmetric code_unfold-lemmas for null and is_none
lammich <lammich@in.tum.de> [Thu, 26 Sep 2013 13:37:33 +0200] rev 53940
Added symmetric code_unfold-lemmas for null and is_none
Thu, 26 Sep 2013 16:33:34 -0700 tuned proofs
huffman [Thu, 26 Sep 2013 16:33:34 -0700] rev 53939
tuned proofs
Thu, 26 Sep 2013 16:33:32 -0700 moved lemma
huffman [Thu, 26 Sep 2013 16:33:32 -0700] rev 53938
moved lemma
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