diff -r 97c530dc8aca -r 77221ee0f7b9 NEWS --- a/NEWS Mon Sep 15 20:51:58 2008 +0200 +++ b/NEWS Tue Sep 16 09:21:22 2008 +0200 @@ -63,6 +63,11 @@ *** HOL *** +* HOL/Main: command "value" now integrates different evaluation mechanisms. +The result of the first successful evaluation mechanism is printed. +In square brackets a particular named evaluation mechanisms may be specified +(currently, [SML], [code] or [nbe]). See further HOL/ex/Eval_Examples.thy. + * HOL/Orderings: class "wellorder" moved here, with explicit induction rule "less_induct" as assumption. For instantiation of "wellorder" by means of predicate "wf", use rule wf_wellorderI. INCOMPATIBILITY.