src/HOL/Library/Float.thy
Tue, 05 Aug 2014 12:56:15 +0200 tuned proofs;
Fri, 04 Jul 2014 20:18:47 +0200 reduced name variants for assoc and commute on plus and mult
Wed, 11 Jun 2014 14:24:23 +1000 Hypsubst preserves equality hypotheses
Mon, 28 Apr 2014 17:50:03 +0200 tuned;
Mon, 14 Apr 2014 13:08:17 +0200 added divide_nonneg_nonneg and co; made it a simp rule
Sat, 12 Apr 2014 17:26:27 +0200 made mult_pos_pos a simp rule
Fri, 11 Apr 2014 13:36:57 +0200 made mult_nonneg_nonneg a simp rule
Wed, 09 Apr 2014 09:37:47 +0200 revert c1bbd3e22226, a14831ac3023, and 36489d77c484: divide_minus_left/right are again simp rules
Fri, 04 Apr 2014 17:58:25 +0100 divide_minus_left divide_minus_right are in field_simps but are not default simprules
Thu, 06 Mar 2014 15:40:33 +0100 renamed 'fun_rel' to 'rel_fun'
Tue, 18 Feb 2014 23:03:50 +0100 simplify proofs because of the stronger reflexivity prover
Mon, 16 Dec 2013 17:08:22 +0100 monotonicity of rounding and truncating float
Mon, 16 Dec 2013 17:08:22 +0100 Float: prevent unnecessary large numbers when adding 0
Mon, 16 Dec 2013 17:08:22 +0100 additional definitions and lemmas for Float
Tue, 19 Nov 2013 10:05:53 +0100 eliminiated neg_numeral in favour of - (numeral _)
Fri, 01 Nov 2013 18:51:14 +0100 more simplification rules on unary and binary minus
Tue, 03 Sep 2013 22:04:23 +0200 tuned proofs -- less guessing;
Tue, 27 Aug 2013 14:37:56 +0200 renamed typeclass dense_linorder to unbounded_dense_linorder
Tue, 26 Mar 2013 20:02:02 +0100 tuned imports;
Fri, 08 Mar 2013 13:21:06 +0100 patch Isabelle ditribution to conform to changes regarding the parametricity
Fri, 12 Oct 2012 18:58:20 +0200 discontinued obsolete typedef (open) syntax;
Wed, 10 Oct 2012 17:43:23 +0200 eliminated some remaining uses of typedef with implicit set definition;
Wed, 16 May 2012 19:17:20 +0200 generate abs_eq, use it as a code equation for total quotients; no_abs_code renamed to no_code; added no_code for quotient_type command
Thu, 26 Apr 2012 14:42:50 +0200 add code equation for real_of_float
Fri, 20 Apr 2012 11:14:39 +0200 hide code generation facts in the Float theory, they are only exported for Approximation
Thu, 19 Apr 2012 22:13:46 +0200 transfer now handles Let
Thu, 19 Apr 2012 18:24:40 +0200 rename no_code to no_abs_code - more appropriate name
Thu, 19 Apr 2012 11:55:30 +0200 use real :: float => real as lifting-morphism so we can directlry use the rep_eq theorems
Wed, 18 Apr 2012 14:29:22 +0200 use lifting to introduce floating point numbers
Wed, 18 Apr 2012 14:29:21 +0200 replace the float datatype by a type with unique representation
Fri, 30 Mar 2012 17:22:17 +0200 tuned proofs, less guesswork;
Tue, 27 Mar 2012 19:21:05 +0200 remove redundant lemmas
Sun, 25 Mar 2012 20:15:39 +0200 merged fork with new numeral representation (see NEWS)
Sat, 25 Feb 2012 09:07:39 +0100 removing unnecessary assumptions in RealDef;
Tue, 21 Feb 2012 16:28:18 +0100 misc tuning;
Thu, 29 Dec 2011 10:47:55 +0100 attribute code_abbrev superseedes code_unfold_post
Tue, 06 Dec 2011 14:29:37 +0100 tuned proofs
Mon, 14 Nov 2011 18:36:31 +0100 cleaned up float theories; removed duplicate definitions and theorems
Tue, 06 Sep 2011 19:03:41 -0700 avoid using legacy theorem names
Wed, 04 May 2011 15:37:39 +0200 proper case_names for int_cases, int_of_nat_induct;
Wed, 12 Jan 2011 17:14:27 +0100 eliminated global prems;
Mon, 06 Dec 2010 19:54:48 +0100 move coercions to appropriate places
Mon, 06 Sep 2010 15:01:37 +0200 When comparing Floats use integers instead of reals (represented as rationals), generates less code when Floats are used.
Sun, 09 May 2010 22:51:11 -0700 avoid using real-specific versions of generic lemmas
Tue, 23 Feb 2010 10:37:25 -0800 moved some lemmas from RealPow to RealDef; changed orientation of real_of_int_power
Mon, 08 Feb 2010 14:06:41 +0100 separate library theory for type classes combining lattices with various algebraic structures
Tue, 10 Nov 2009 18:29:07 +0100 eliminated some old uses of cumulative prems (!) in proof methods;
Sat, 17 Oct 2009 14:43:18 +0200 eliminated hard tabulators, guessing at each author's individual tab-width;
Tue, 14 Jul 2009 16:27:32 +0200 prefer code_inline over code_unfold; use code_unfold_post where appropriate
Tue, 14 Jul 2009 10:54:04 +0200 code attributes use common underscore convention
Mon, 29 Jun 2009 23:29:11 +0200 Implemented taylor series expansion for approximation
Thu, 04 Jun 2009 17:55:47 +0200 Approximation: Implemented argument reduction for cosine. Sinus is now implemented in terms of cosine. Sqrt computes on the entire real numbers
Wed, 29 Apr 2009 20:19:50 +0200 replaced Ifloat => real_of_float and real, renamed ApproxEq => inequality, uneq => interpret_inequality, uneq' => approx_inequality, Ifloatarith => interpret_floatarith
Wed, 29 Apr 2009 14:20:26 +0200 farewell to class recpower
Wed, 22 Apr 2009 19:09:21 +0200 power operation defined generic
Wed, 04 Mar 2009 11:05:29 +0100 Merge.
Wed, 04 Mar 2009 10:45:52 +0100 Merge.
Sun, 01 Mar 2009 12:01:57 +0100 removed redundant lemmas
Thu, 26 Feb 2009 20:56:59 +0100 standard headers;
Sat, 21 Feb 2009 09:58:26 +0100 removed redundant thms