src/HOLCF/ssum2.thy
author paulson
Thu, 25 May 2000 15:15:54 +0200
changeset 8975 bcd34d580839
parent 243 c22b85994e17
permissions -rw-r--r--
moved mostly to HOL/SetInterval.ML and UNITY/UNITY.ML

(*  Title: 	HOLCF/ssum2.thy
    ID:         $Id$
    Author: 	Franz Regensburger
    Copyright   1993 Technische Universitaet Muenchen

Class Instance ++::(pcpo,pcpo)po
*)

Ssum2 = Ssum1 + 

arities "++" :: (pcpo,pcpo)po
(* Witness for the above arity axiom is ssum1.ML *)

rules

(* instance of << for type ['a ++ 'b]  *)

inst_ssum_po	"(op <<)::['a ++ 'b,'a ++ 'b]=>bool = less_ssum"

end