src/HOL/Library/Float.thy
Sat, 02 Dec 2017 16:50:53 +0000 haftmann more simplification rules
Tue, 24 Oct 2017 18:48:21 +0200 immler generalized lemmas cancelling real_of_int/real in (in)equalities with power; completed set of related simp rules; lemmas about floorlog/bitlen
Wed, 26 Apr 2017 15:53:35 +0100 paulson Further new material. The simprule status of some exp and ln identities was reverted.
Sun, 05 Mar 2017 10:57:51 +0100 nipkow added numeral_powr_numeral
Sun, 16 Oct 2016 09:31:06 +0200 haftmann eliminated irregular aliasses
Sun, 16 Oct 2016 09:31:04 +0200 haftmann more standardized names
Fri, 12 Aug 2016 09:57:09 +0200 nipkow tuned
Fri, 12 Aug 2016 08:20:17 +0200 nipkow Extracted floorlog and bitlen to separate theory Log_Nat
Fri, 05 Aug 2016 12:27:51 +0200 nipkow fixed floor proofs
Fri, 05 Aug 2016 09:05:03 +0200 nipkow more lemmas
Fri, 24 Jun 2016 20:27:57 +0200 wenzelm misc tuning and modernization;
Wed, 08 Jun 2016 16:46:48 +0200 immler generalized bitlen to floor of log
Mon, 25 Apr 2016 16:09:26 +0200 wenzelm eliminated old 'def';
Fri, 26 Feb 2016 11:53:45 +0100 immler finite precision computation to determine sign for comparison
Fri, 26 Feb 2016 11:53:45 +0100 immler positive precision for truncate; fixed precision for approximation of rationals; code for truncate
Fri, 26 Feb 2016 11:53:42 +0100 immler compute_real_of_float has not been used as code equation
Tue, 23 Feb 2016 16:25:08 +0100 nipkow more canonical names
Wed, 17 Feb 2016 21:51:57 +0100 haftmann dropped various legacy fact bindings
Mon, 28 Dec 2015 01:28:28 +0100 wenzelm more symbols;
Sun, 27 Dec 2015 21:46:36 +0100 wenzelm prefer symbols for "floor", "ceiling";
Mon, 07 Dec 2015 10:38:04 +0100 wenzelm isabelle update_cartouches -c -t;
Tue, 01 Dec 2015 14:09:10 +0000 paulson Removal of redundant lemmas (diff_less_iff, diff_le_iff) and of the abbreviation Exp. Addition of some new material.
Fri, 13 Nov 2015 12:27:13 +0000 paulson Tweaks for "real": Removal of [iff] status for some lemmas, adding [simp] for others. Plus fixes.
Wed, 11 Nov 2015 17:11:50 +0000 paulson new conversion theorems for int, nat to float
Tue, 10 Nov 2015 14:18:41 +0000 paulson Coercion "real" now has type nat => real only and is no longer overloaded. Type class "real_of" is gone. Many duplicate theorems removed.
Sat, 08 Aug 2015 10:51:33 +0200 haftmann direct bootstrap of integer division from natural division
Thu, 09 Jul 2015 00:40:57 +0200 wenzelm tuned proofs;
Mon, 06 Jul 2015 22:57:34 +0200 wenzelm tuned proofs;
Wed, 17 Jun 2015 11:03:05 +0200 wenzelm isabelle update_cartouches;
Sun, 07 Jun 2015 14:36:36 +0200 wenzelm tuned;
Sat, 11 Apr 2015 11:56:40 +0100 paulson Overloading of ln and powr, but "approximation" no longer works for powr. Code generation also fails due to type ambiguity in scala.
Thu, 09 Apr 2015 09:12:47 +0200 haftmann conversion between division on nat/int and division in archmedean fields
Wed, 18 Feb 2015 22:46:47 +0100 haftmann inlined rules to free user-space from technical names
Fri, 06 Feb 2015 17:57:03 +0100 haftmann default abstypes and default abstract equations make technical (no_code) annotation superfluous
Wed, 12 Nov 2014 17:37:43 +0100 immler tuned proofs
Wed, 12 Nov 2014 17:37:43 +0100 immler quickcheck setup for float, inspired by rat::{exhaustive,full_exhaustive,random}
Wed, 12 Nov 2014 17:37:43 +0100 immler truncate intermediate results in horner to improve performance of approximate;
Wed, 12 Nov 2014 17:36:29 +0100 immler simplified computations based on round_up by reducing to round_down;
Sun, 02 Nov 2014 17:20:45 +0100 wenzelm modernized header;
Thu, 30 Oct 2014 21:02:01 +0100 haftmann more simp rules concerning dvd and even/odd
Sun, 21 Sep 2014 16:56:11 +0200 haftmann explicit separation of signed and unsigned numerals using existing lexical categories num and xnum
Mon, 25 Aug 2014 14:24:05 +0200 hoelzl introduce real_of typeclass for real :: 'a => real
Tue, 05 Aug 2014 12:56:15 +0200 wenzelm tuned proofs;
Fri, 04 Jul 2014 20:18:47 +0200 haftmann reduced name variants for assoc and commute on plus and mult
Wed, 11 Jun 2014 14:24:23 +1000 Thomas Sewell Hypsubst preserves equality hypotheses
Mon, 28 Apr 2014 17:50:03 +0200 wenzelm tuned;
Mon, 14 Apr 2014 13:08:17 +0200 hoelzl added divide_nonneg_nonneg and co; made it a simp rule
Sat, 12 Apr 2014 17:26:27 +0200 nipkow made mult_pos_pos a simp rule
Fri, 11 Apr 2014 13:36:57 +0200 nipkow made mult_nonneg_nonneg a simp rule
Wed, 09 Apr 2014 09:37:47 +0200 hoelzl revert c1bbd3e22226, a14831ac3023, and 36489d77c484: divide_minus_left/right are again simp rules
Fri, 04 Apr 2014 17:58:25 +0100 paulson divide_minus_left divide_minus_right are in field_simps but are not default simprules
Thu, 06 Mar 2014 15:40:33 +0100 blanchet renamed 'fun_rel' to 'rel_fun'
Tue, 18 Feb 2014 23:03:50 +0100 kuncar simplify proofs because of the stronger reflexivity prover
Mon, 16 Dec 2013 17:08:22 +0100 immler monotonicity of rounding and truncating float
Mon, 16 Dec 2013 17:08:22 +0100 immler Float: prevent unnecessary large numbers when adding 0
Mon, 16 Dec 2013 17:08:22 +0100 immler additional definitions and lemmas for Float
Tue, 19 Nov 2013 10:05:53 +0100 haftmann eliminiated neg_numeral in favour of - (numeral _)
Fri, 01 Nov 2013 18:51:14 +0100 haftmann more simplification rules on unary and binary minus
Tue, 03 Sep 2013 22:04:23 +0200 wenzelm tuned proofs -- less guessing;
Tue, 27 Aug 2013 14:37:56 +0200 hoelzl renamed typeclass dense_linorder to unbounded_dense_linorder
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