NEWS
changeset 55547 384bfd19ee61
parent 55536 56ebc4d4d008
child 55580 d12a13713cb4
equal deleted inserted replaced
55546:76979adf0b96 55547:384bfd19ee61
   355 
   355 
   356 * Proper context for basic Simplifier operations: rewrite_rule,
   356 * Proper context for basic Simplifier operations: rewrite_rule,
   357 rewrite_goals_rule, rewrite_goals_tac etc. INCOMPATIBILITY, need to
   357 rewrite_goals_rule, rewrite_goals_tac etc. INCOMPATIBILITY, need to
   358 pass runtime Proof.context (and ensure that the simplified entity
   358 pass runtime Proof.context (and ensure that the simplified entity
   359 actually belongs to it).
   359 actually belongs to it).
       
   360 
       
   361 * Subtle change of semantics of Thm.eq_thm: theory stamps are not
       
   362 compared (according to Thm.thm_ord), but assumed to be covered by the
       
   363 current background theory.  Thus equivalent data produced in different
       
   364 branches of the theory graph usually coincides (e.g. relevant for
       
   365 theory merge).  Note that the softer Thm.eq_thm_prop is often more
       
   366 appropriate than Thm.eq_thm.
   360 
   367 
   361 
   368 
   362 *** System ***
   369 *** System ***
   363 
   370 
   364 * Simplified "isabelle display" tool.  Settings variables DVI_VIEWER
   371 * Simplified "isabelle display" tool.  Settings variables DVI_VIEWER