# HG changeset patch # User nipkow # Date 1022824517 -7200 # Node ID 172f65d0c3d1fb2a9c8529f9000c3576d8c14c3a # Parent 81ed5c6de8902e05f6dd7d38368947d757d92722 *** empty log message *** diff -r 81ed5c6de890 -r 172f65d0c3d1 NEWS --- a/NEWS Fri May 31 07:53:37 2002 +0200 +++ b/NEWS Fri May 31 07:55:17 2002 +0200 @@ -3,8 +3,8 @@ *** HOL *** -* arith(_tac) does now know about div 2 and mod 2 on type nat. - It can solve simple goals like "0 < n ==> n div 2 < (n::nat)" +* arith(_tac) does now know about div k and mod k where k is a numeral of + type nat. It can solve simple goals like "0 < n ==> n div 2 < (n::nat)" but fails if divisibility plays a role like in "n div 2 + (n+1) div 2 = (n::nat)". * simp's arithmetic capabilities have been enhanced a bit: