src/HOLCF/IOA/ABP/Action.thy

Removed theory NatDef.

(*  Title:      HOLCF/IOA/ABP/Action.thy
    ID:         $Id$
    Author:     Olaf Müller
    License:    GPL (GNU GENERAL PUBLIC LICENSE)

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