# HG changeset patch # User nipkow # Date 1206911875 -7200 # Node ID b4f0f36a28daf7ba281c6b6349a6eb9b17d927a4 # Parent b4db4e1657588b2f9084e97643874497acab1d2a *** empty log message *** diff -r b4db4e165758 -r b4f0f36a28da NEWS --- a/NEWS Sat Mar 29 22:56:01 2008 +0100 +++ b/NEWS Sun Mar 30 23:17:55 2008 +0200 @@ -144,6 +144,10 @@ * Library/ListVector: new theory of arithmetic vector operations. +* Library/Order_Relation: new theory of various orderings as sets of pairs. + Defines preorders, partial orders, linear orders and well-orders + on sets and on types. + * Constants "card", "internal_split", "option_map" now with authentic syntax. INCOMPATIBILITY.