diff -r c45845743f04 -r 0ab754d13ccd NEWS --- a/NEWS Fri Feb 06 15:15:27 2009 +0100 +++ b/NEWS Fri Feb 06 15:15:32 2009 +0100 @@ -196,14 +196,17 @@ * Auxiliary class "itself" has disappeared -- classes without any parameter are treated as expected by the 'class' command. -* Theory "Reflection" now resides in HOL/Library. Common reflection examples -(Cooper, MIR, Ferrack, Approximation) now in distinct session directory -HOL/Reflection. Here Approximation provides the new proof method -"approximation". It proves formulas on real values by using interval arithmetic. +* Leibnitz's Series for Pi and the arcus tangens and logarithm series. + +* Common decision procedures (Cooper, MIR, Ferrack, Approximation, Dense_Linear_Order) +now in directory HOL/Decision_Procs. + +* Theory HOL/Decisioin_Procs/Approximation.thy provides the new proof method +"approximation". It proves formulas on real values by using interval arithmetic. In the formulas are also the transcendental functions sin, cos, tan, atan, ln, -exp and the constant pi are allowed. For examples see -src/HOL/ex/ApproximationEx.thy. To reach this the Leibnitz's Series for Pi and -the arcus tangens and logarithm series is now proved in Isabelle. +exp and the constant pi are allowed. For examples see HOL/ex/ApproximationEx.thy. + +* Theory "Reflection" now resides in HOL/Library. * Entry point to Word library now simply named "Word". INCOMPATIBILITY. @@ -212,7 +215,6 @@ src/HOL/Library/RType.thy ~> src/HOL/Typerep.thy src/HOL/Library/Code_Message.thy ~> src/HOL/ - src/HOL/Library/Dense_Linear_Order.thy ~> src/HOL/ src/HOL/Library/GCD.thy ~> src/HOL/ src/HOL/Library/Order_Relation.thy ~> src/HOL/ src/HOL/Library/Parity.thy ~> src/HOL/