Auto_tac: now uses enhanced version of asm_full_simp_tac,
Force_tac: replaced fast_tac by best_tac
(* Title: HOLCF/pcpo.thy
ID: $Id$
Author: Franz Regensburger
Copyright 1993 Technische Universitaet Muenchen
Definition of class pcpo (pointed complete partial order)
The prototype theory for this class is porder.thy
*)
Pcpo = Porder +
(* Introduction of new class. The witness is type void. *)
classes pcpo < po
(* default class is still term *)
(* void is the prototype in pcpo *)
arities void :: pcpo
consts
UU :: "'a::pcpo" (* UU is the least element *)
rules
(* class axioms: justification is theory Porder *)
minimal "UU << x" (* witness is minimal_void *)
cpo "is_chain(S) ==> ? x. range(S) <<| x::('a::pcpo)"
(* witness is cpo_void *)
(* needs explicit type *)
(* instance of UU for the prototype void *)
inst_void_pcpo "UU::void = UU_void"
end