--- a/src/HOL/NanoJava/AxSem.thy Wed Dec 30 19:57:37 2015 +0100
+++ b/src/HOL/NanoJava/AxSem.thy Wed Dec 30 20:07:59 2015 +0100
@@ -58,7 +58,7 @@
new C {P}"
| Cast: "A \<turnstile>\<^sub>e {P} e {\<lambda>v s. (case v of Null => True
- | Addr a => obj_class s a <=C C) --> Q v s} ==>
+ | Addr a => obj_class s a \<preceq>C C) --> Q v s} ==>
A \<turnstile>\<^sub>e {P} Cast C e {Q}"
| Call: "[| A \<turnstile>\<^sub>e {P} e1 {Q}; \<forall>a. A \<turnstile>\<^sub>e {Q a} e2 {R a};
@@ -67,7 +67,7 @@
Meth (C,m) {\<lambda>s. S (s<Res>) (set_locs ls s)} |] ==>
A \<turnstile>\<^sub>e {P} {C}e1..m(e2) {S}"
-| Meth: "\<forall>D. A \<turnstile> {\<lambda>s'. \<exists>s a. s<This> = Addr a \<and> D = obj_class s a \<and> D <=C C \<and>
+| Meth: "\<forall>D. A \<turnstile> {\<lambda>s'. \<exists>s a. s<This> = Addr a \<and> D = obj_class s a \<and> D \<preceq>C C \<and>
P s \<and> s' = init_locs D m s}
Impl (D,m) {Q} ==>
A \<turnstile> {P} Meth (C,m) {Q}"