-- # Software Tools for Discrete Mathematics module Stdm06LogicOperators where infix 1 <=> (<=>) :: Bool -> Bool -> Bool (<=>) a b = a == b infix 2 ==> (==>) :: Bool -> Bool -> Bool (==>) True False = False (==>) a b = True infix 3 \/ (\/) = (||) infix 4 /\ (/\) = (&&)