src/HOL/Fields.thy
2017-02-27 paulson 2017-02-27 Some new lemmas thanks to Lukas Bulwahn. Also, NEWS.
2016-12-17 haftmann 2016-12-17 restructured matter on polynomials and normalized fractions
2016-10-20 haftmann 2016-10-20 more on sgn in linear ordered fields
2016-10-18 haftmann 2016-10-18 suitable logical type class for abs, sgn
2016-09-28 paulson 2016-09-28 new material connected with HOL Light measure theory, plus more rationalisation
2016-03-01 haftmann 2016-03-01 tuned bootstrap order to provide type classes in a more sensible order
2016-02-17 haftmann 2016-02-17 generalized some lemmas; moved some lemmas in more appropriate places; deleted potentially dangerous simp rule
2015-12-28 wenzelm 2015-12-28 prefer symbols for "abs";
2015-12-27 wenzelm 2015-12-27 discontinued ASCII replacement syntax <->;
2015-12-07 wenzelm 2015-12-07 isabelle update_cartouches -c -t;
2015-09-23 paulson 2015-09-23 Useful facts about min/max, etc.
2015-09-01 wenzelm 2015-09-01 eliminated \<Colon>;
2015-07-18 wenzelm 2015-07-18 isabelle update_cartouches;
2015-07-08 haftmann 2015-07-08 tuned facts
2015-06-25 haftmann 2015-06-25 more theorems
2015-06-01 haftmann 2015-06-01 implicit partial divison operation in integral domains
2015-06-01 haftmann 2015-06-01 separate class for division operator, with particular syntax added in more specific classes
2015-03-31 haftmann 2015-03-31 given up separate type classes demanding `inverse 0 = 0`
2015-03-23 hoelzl 2015-03-23 fix parameter order of NO_MATCH
2015-03-10 paulson 2015-03-10 Removal of the file HOL/Number_Theory/Binomial!! And class field_char_0 now declared in Int.thy
2015-02-19 haftmann 2015-02-19 establish unique preferred fact names
2015-02-15 haftmann 2015-02-15 times_divide_eq rules are already [simp] despite of comment
2015-02-14 haftmann 2015-02-14 less warnings
2014-11-02 wenzelm 2014-11-02 modernized header uniformly as section;
2014-10-29 wenzelm 2014-10-29 modernized setup;
2014-10-24 hoelzl 2014-10-24 use NO_MATCH-simproc for distribution rules in field_simps, otherwise field_simps on '(a / (c + d)) * (e + f)' can be non-terminating
2014-10-02 haftmann 2014-10-02 moved lemmas out of Int.thy which have nothing to do with int
2014-08-16 wenzelm 2014-08-16 updated to named_theorems;
2014-07-05 haftmann 2014-07-05 prefer ac_simps collections over separate name bindings for add and mult
2014-07-04 haftmann 2014-07-04 reduced name variants for assoc and commute on plus and mult
2014-04-14 hoelzl 2014-04-14 added divide_nonneg_nonneg and co; made it a simp rule
2014-04-11 nipkow 2014-04-11 made divide_pos_pos a simp rule
2014-04-09 hoelzl 2014-04-09 add divide_simps
2014-04-09 hoelzl 2014-04-09 field_simps: better support for negation and division, and power
2014-04-09 hoelzl 2014-04-09 revert c1bbd3e22226, a14831ac3023, and 36489d77c484: divide_minus_left/right are again simp rules
2014-04-06 nipkow 2014-04-06 tuned lemmas: more general class
2014-04-06 nipkow 2014-04-06 made field_simps "more complete"
2014-04-05 paulson 2014-04-05 A single [simp] to handle the case -a/-b.
2014-04-04 paulson 2014-04-04 divide_minus_left divide_minus_right are in field_simps but are not default simprules
2014-04-03 paulson 2014-04-03 removing simprule status for divide_minus_left and divide_minus_right
2014-04-02 paulson 2014-04-02 New theorems for extracting quotients
2014-02-24 paulson 2014-02-24 A few lemmas about summations, etc.
2013-11-01 haftmann 2013-11-01 more simplification rules on unary and binary minus
2013-10-18 blanchet 2013-10-18 killed most "no_atp", to make Sledgehammer more complete
2013-09-03 wenzelm 2013-09-03 tuned proofs -- clarified flow of facts wrt. calculation;
2013-08-27 hoelzl 2013-08-27 renamed typeclass dense_linorder to unbounded_dense_linorder
2013-06-23 haftmann 2013-06-23 migration from code_(const|type|class|instance) to code_printing and from code_module to code_identifier
2011-09-13 huffman 2011-09-13 tuned proofs
2011-09-03 huffman 2011-09-03 simplify proof
2011-08-08 huffman 2011-08-08 moved division ring stuff from Rings.thy to Fields.thy
2011-05-20 hoelzl 2011-05-20 add divide_.._cancel, inverse_.._iff
2010-05-08 huffman 2010-05-08 add lemmas one_less_inverse and one_le_inverse
2010-05-06 haftmann 2010-05-06 moved some lemmas from Groebner_Basis here
2010-04-27 haftmann 2010-04-27 tuned whitespace
2010-04-27 haftmann 2010-04-27 got rid of [simplified]
2010-04-27 haftmann 2010-04-27 tuned class linordered_field_inverse_zero
2010-04-26 haftmann 2010-04-26 use new classes (linordered_)field_inverse_zero
2010-04-26 haftmann 2010-04-26 dropped group_simps, ring_simps, field_eq_simps; classes division_ring_inverse_zero, field_inverse_zero, linordered_field_inverse_zero
2010-04-25 haftmann 2010-04-25 field_simps as named theorems
2010-04-23 haftmann 2010-04-23 less special treatment of times_divide_eq [simp]