| Sat, 09 Jun 2007 02:38:51 +0200 | huffman | remove dependencies of proofs on constant int::nat=>int, preparing to remove it | file | diff | annotate |
| Wed, 06 Jun 2007 20:49:04 +0200 | huffman | add axclass semiring_char_0 for types where of_nat is injective | file | diff | annotate |