# HG changeset patch # User oheimb # Date 856194659 -3600 # Node ID 2edc5b01e5a77e894ffb550cb4ebfd2d9996adb7 # Parent 9944bea3b459787a9e9ed27154aa00eb4c3df151 improved description of recent changes diff -r 9944bea3b459 -r 2edc5b01e5a7 NEWS --- a/NEWS Mon Feb 17 16:50:17 1997 +0100 +++ b/NEWS Mon Feb 17 16:50:59 1997 +0100 @@ -2,6 +2,9 @@ Isabelle NEWS -- history of user-visible changes ================================================ +New in Isabelle94-8 (??????????? 1997 FIXME) +--------------------------------------- + * simplifier: new functions delcongs, deleqcongs, and Delcongs. richer rep_ss. * simplifier: the solver is now split into a safe and an unsafe part. @@ -9,21 +12,16 @@ setsolver and addsolver have been renamed to setSolver and addSolver. added safe_asm_full_simp_tac. -* classical reasoner: better addbefore, addafter (now: addaltern), - setwrapper (now: setWrapper) and addwrapper (now addWrapper) - replaced addafter by addaltern, +* classical reasoner: little changes in semantics of addafter (now: addaltern), + renamed setwrapper to setWrapper, addwrapper to addWrapper added safe wrapper (and access functions for it) -* better combination of classical reasoner and simplifier: +* improved combination of classical reasoner and simplifier: new addss, auto_tac, functions for handling clasimpsets, ... Now, the simplification is safe (therefore moved to safe_step_tac) and thus - more complete, as multiple instantiation of unknowns (with slow_tac)possible - COULD MAKE EXISTING PROOFS FAIL; in case of problems with unstable - old proofs, use unsafe_addss and unsafe_auto_tac - - -New in Isabelle94-8 (??????????? 1997 FIXME) ---------------------------------------- + more complete, as multiple instantiation of unknowns (with slow_tac) possible + COULD MAKE EXISTING PROOFS FAIL; in case of problems with unstable old proofs: + use unsafe_addss and unsafe_auto_tac * HOL: primrec now also works with type nat;