arcsin and arccos are continuous on {0 .. 1} (including the endpoints)
(* Title: HOL/HOLCF/IOA/Storage/Action.thy
Author: Olaf Müller
*)
header {* The set of all actions of the system *}
theory Action
imports Main
begin
datatype action = New | Loc nat | Free nat
lemma [cong]: "!!x. x = y ==> action_case a b c x = action_case a b c y"
by simp
end