src/HOLCF/Ssum2.thy
author clasohm
Wed Jun 29 12:03:41 1994 +0200 (1994-06-29)
changeset 442 13ac1fd0a14d
parent 243 c22b85994e17
child 1479 21eb5e156d91
permissions -rw-r--r--
added parentheses made necessary by change of constrain's precedence
     1 (*  Title: 	HOLCF/ssum2.thy
     2     ID:         $Id$
     3     Author: 	Franz Regensburger
     4     Copyright   1993 Technische Universitaet Muenchen
     5 
     6 Class Instance ++::(pcpo,pcpo)po
     7 *)
     8 
     9 Ssum2 = Ssum1 + 
    10 
    11 arities "++" :: (pcpo,pcpo)po
    12 (* Witness for the above arity axiom is ssum1.ML *)
    13 
    14 rules
    15 
    16 (* instance of << for type ['a ++ 'b]  *)
    17 
    18 inst_ssum_po	"((op <<)::['a ++ 'b,'a ++ 'b]=>bool) = less_ssum"
    19 
    20 end
    21 
    22 
    23