huffman [Thu, 08 Jan 2009 12:25:22 -0800] rev 29410
remove type-specific proofs
huffman [Thu, 08 Jan 2009 10:43:09 -0800] rev 29409
add lemma dvd_diff to class comm_ring_1
huffman [Thu, 08 Jan 2009 10:26:50 -0800] rev 29408
add lemmas dvd_minus_iff and minus_dvd_iff in class comm_ring_1
huffman [Thu, 08 Jan 2009 10:07:39 -0800] rev 29407
move lemmas mult_minus{left,right} inside class ring
huffman [Thu, 08 Jan 2009 09:58:36 -0800] rev 29406
clean up division_ring proofs
huffman [Thu, 08 Jan 2009 09:12:29 -0800] rev 29405
add class ring_div; generalize mod/diff/minus proofs for class ring_div
huffman [Thu, 08 Jan 2009 08:36:16 -0800] rev 29404
generalize zmod_zmod_cancel -> mod_mod_cancel
huffman [Thu, 08 Jan 2009 08:24:08 -0800] rev 29403
generalize some div/mod lemmas; remove type-specific proofs
huffman [Wed, 07 Jan 2009 08:13:56 -0800] rev 29402
add tracing for domain package proofs
huffman [Tue, 06 Jan 2009 11:49:23 -0800] rev 29401
rename abbreviation square -> power2, to match theorem names