(* Title: HOL/MicroJava/J/Decl.ML
ID: $Id$
Author: David von Oheimb
Copyright 1999 Technische Universitaet Muenchen
*)
val finite_is_class = prove_goalw thy [is_class_def,class_def,o_def] "finite {C. is_class G C}" (K [
rtac finite_map_of 1]);
val is_classI = prove_goalw thy [is_class_def]
"\\<And>G. class G C = Some c \\<Longrightarrow> is_class G C" (K [Auto_tac]);
val is_classD = prove_goalw thy [is_class_def]
"\\<And>G. is_class G C \\<Longrightarrow> \\<exists>sc fs ms. class G C = Some (sc,fs,ms)" (K [
not_None_tac 1, pair_tac "y" 1, pair_tac "ya" 1, Auto_tac]);