+definition compose \def
+ \lambda A,B,C:Type.\lambda f:(B\to C).\lambda g:(A\to B).\lambda x:A.
+ f (g x).
+
+notation "hvbox(a break \circ b)"
+ left associative with precedence 70
+for @{ 'compose $a $b }.
+
+interpretation "function composition" 'compose f g =
+ (cic:/matita/higher_order_defs/functions/compose.con _ _ _ f g).
+