took out some datatype tests for Refute -- these yield timeouts on some Isatests after transition to new datatypes, for some reason (and Refute is obsolete anyway)
(* Title: HOL/MicroJava/DFA/Semilattices.thy
Author: Gerwin Klein
Copyright 2003 TUM
*)
header {* Semilattices *}
(*<*)
theory Semilattices
imports Err Opt Product Listn
begin
end
(*>*)