--- a/src/HOL/TLA/Memory/MemoryImplementation.thy Sun Dec 27 16:40:09 2015 +0100
+++ b/src/HOL/TLA/Memory/MemoryImplementation.thy Sun Dec 27 17:16:21 2015 +0100
@@ -33,15 +33,15 @@
definition
(* auxiliary predicates *)
MVOKBARF :: "Vals \<Rightarrow> bool"
- where "MVOKBARF v <-> (v : MemVal) | (v = OK) | (v = BadArg) | (v = RPCFailure)"
+ where "MVOKBARF v \<longleftrightarrow> (v : MemVal) | (v = OK) | (v = BadArg) | (v = RPCFailure)"
definition
MVOKBA :: "Vals \<Rightarrow> bool"
- where "MVOKBA v <-> (v : MemVal) | (v = OK) | (v = BadArg)"
+ where "MVOKBA v \<longleftrightarrow> (v : MemVal) | (v = OK) | (v = BadArg)"
definition
MVNROKBA :: "Vals \<Rightarrow> bool"
- where "MVNROKBA v <-> (v : MemVal) | (v = NotAResult) | (v = OK) | (v = BadArg)"
+ where "MVNROKBA v \<longleftrightarrow> (v : MemVal) | (v = NotAResult) | (v = OK) | (v = BadArg)"
definition
(* tuples of state functions changed by the various components *)