recoded latin1 as utf8;
use textcomp for some text symbols where it appears appropriate;
(* Title: HOLCF/IOA/ABP/Impl.thy
Author: Olaf Müller
*)
header {* The implementation *}
theory Impl
imports Sender Receiver Abschannel
begin
types
'm impl_state = "'m sender_state * 'm receiver_state * 'm packet list * bool list"
(* sender_state * receiver_state * srch_state * rsch_state *)
definition
impl_ioa :: "('m action, 'm impl_state)ioa" where
"impl_ioa = (sender_ioa || receiver_ioa || srch_ioa || rsch_ioa)"
definition
sen :: "'m impl_state => 'm sender_state" where
"sen = fst"
definition
rec :: "'m impl_state => 'm receiver_state" where
"rec = fst o snd"
definition
srch :: "'m impl_state => 'm packet list" where
"srch = fst o snd o snd"
definition
rsch :: "'m impl_state => bool list" where
"rsch = snd o snd o snd"
end