| Thu, 24 May 2007 16:52:54 +0200 |
obua |
Squared things out.
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| Tue, 22 May 2007 16:47:22 +0200 |
huffman |
add missing instance declarations
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| Thu, 17 May 2007 19:49:16 +0200 |
haftmann |
tuned
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| Thu, 17 May 2007 18:32:17 +0200 |
huffman |
added classes ring_no_zero_divisors and dom (non-commutative version of idom);
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| Thu, 17 May 2007 08:42:51 +0200 |
huffman |
instance division_ring < no_zero_divisors; clean up field instance proofs
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| Sun, 06 May 2007 21:49:29 +0200 |
haftmann |
added auxiliary lemmas for proof tools
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| Thu, 29 Mar 2007 14:21:45 +0200 |
haftmann |
dropped legacy ML bindings
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| Fri, 16 Mar 2007 21:32:08 +0100 |
haftmann |
adjusted to new lattice theory developement in Lattices.thy / FixedPoint.thy
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| Fri, 09 Mar 2007 08:45:50 +0100 |
haftmann |
stepping towards uniform lattice theory development in HOL
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| Fri, 02 Mar 2007 15:43:21 +0100 |
haftmann |
now using "class"
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| Mon, 13 Nov 2006 15:43:05 +0100 |
haftmann |
dropped Inductive dependency
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| Thu, 09 Nov 2006 00:43:12 +0100 |
huffman |
added lemma mult_mono'
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| Tue, 07 Nov 2006 09:33:47 +0100 |
krauss |
* Added annihilation axioms ("x * 0 = 0") to axclass semiring_0.
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| Wed, 20 Sep 2006 00:24:24 +0200 |
wenzelm |
renamed axclass_xxxx axclasses;
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| Tue, 19 Sep 2006 18:13:10 +0200 |
obua |
renamed axclass_xxxx axclasses
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| Sun, 10 Sep 2006 05:34:24 +0200 |
huffman |
added axclass division_ring (like field without commutativity; includes e.g. quaternions) and generalized some theorems from field to division_ring
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| Mon, 10 Apr 2006 16:00:34 +0200 |
obua |
Moved stuff from Ring_and_Field to Matrix
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| Wed, 11 Jan 2006 11:00:26 +0100 |
paulson |
tidied, and added missing thm divide_less_eq_1_neg
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| Mon, 09 Jan 2006 13:28:06 +0100 |
paulson |
simplified the special-case simprules
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| Tue, 16 Aug 2005 18:53:11 +0200 |
paulson |
more simprules now have names
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| Tue, 12 Jul 2005 17:56:03 +0200 |
avigad |
added lemmas to OrderedGroup.thy (reasoning about signs, absolute value, triangle inequalities)
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| Sat, 25 Jun 2005 16:06:17 +0200 |
nipkow |
Changes due to new abel_cancel.ML
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| Wed, 04 May 2005 10:42:43 +0200 |
nipkow |
fixed lin.arith
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| Tue, 19 Apr 2005 10:59:31 +0200 |
obua |
Removed mult_commute axiom from comm_semiring axclass.
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| Mon, 07 Mar 2005 18:19:55 +0100 |
obua |
Cleaning up HOL/Matrix
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| Tue, 01 Feb 2005 18:01:57 +0100 |
paulson |
the new subst tactic, by Lucas Dixon
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| Thu, 07 Oct 2004 15:42:30 +0200 |
paulson |
simplification tweaks for better arithmetic reasoning
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| Tue, 05 Oct 2004 15:30:50 +0200 |
paulson |
new simprules for abs and for things like a/b<1
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| Mon, 04 Oct 2004 15:28:03 +0200 |
paulson |
revised simprules for division
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| Fri, 10 Sep 2004 20:04:14 +0200 |
nipkow |
Added antisymmetry simproc
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