(* Title: HOL/IOA/example/Impl.thy
ID: $Id$
Author: Tobias Nipkow & Konrad Slind
Copyright 1994 TU Muenchen
The implementation
*)
Impl_finite = Sender + Receiver + Abschannel_finite +
types
'm impl_fin_state
= "'m sender_state * 'm receiver_state * 'm packet list * bool list"
(* sender_state * receiver_state * srch_state * rsch_state *)
constdefs
impl_fin_ioa :: ('m action, 'm impl_fin_state)ioa
"impl_fin_ioa == (sender_ioa || receiver_ioa || srch_fin_ioa ||
rsch_fin_ioa)"
sen_fin :: 'm impl_fin_state => 'm sender_state
"sen_fin == fst"
rec_fin :: 'm impl_fin_state => 'm receiver_state
"rec_fin == fst o snd"
srch_fin :: 'm impl_fin_state => 'm packet list
"srch_fin == fst o snd o snd"
rsch_fin :: 'm impl_fin_state => bool list
"rsch_fin == snd o snd o snd"
end