src/HOLCF/IOA/ABP/Action.thy

Added a number of new thms and the new function remove1

(*  Title:      HOLCF/IOA/ABP/Action.thy
    ID:         $Id$
    Author:     Olaf Müller

The set of all actions of the system.
*)

Action = Packet + Datatype +
datatype 'm action = Next | S_msg ('m) | R_msg ('m)
                   | S_pkt ('m packet) | R_pkt ('m packet) 
                   | S_ack (bool) | R_ack (bool)         
end