src/HOL/NanoJava/TypeRel.thy

 apply (drule wf_subcls1)
 apply (subst def_wfrec[OF class_rec_def], auto)
 apply (subst cut_apply, auto intro: subcls1I)
 done
 
-\<comment>\<open>Methods of a class, with inheritance and hiding\<close>
+\<comment> \<open>Methods of a class, with inheritance and hiding\<close>
 definition "method" :: "cname => (mname \<rightharpoonup> methd)" where
   "method C \<equiv> class_rec C methods"
 
 lemma method_rec: "\<lbrakk>class C = Some m; ws_prog\<rbrakk> \<Longrightarrow>
 method C = (if C=Object then empty else method (super m)) ++ map_of (methods m)"

 apply (erule (1) class_rec [THEN trans])
 apply simp
 done
 
 
-\<comment>\<open>Fields of a class, with inheritance and hiding\<close>
+\<comment> \<open>Fields of a class, with inheritance and hiding\<close>
 definition field  :: "cname => (fname \<rightharpoonup> ty)" where
   "field C \<equiv> class_rec C flds"
 
 lemma flds_rec: "\<lbrakk>class C = Some m; ws_prog\<rbrakk> \<Longrightarrow>
 field C = (if C=Object then empty else field (super m)) ++ map_of (flds m)"