unless a lion is present; a belief that his partners have a like desire; a belief that a lion is present, at times when he hears Tonlay!' uttered; a belief that his partners respond in the same way to utterances of 'lonlay!'; a belief that his partners expect him to have the beliefs and desires, or at least that See, for instance, the exposition of decision theory in Richard Jeffrey, The Logic of Decision (New York: McGraw Hill, ); or the less formal account of rationalization of behavior in Donald Davidson, Actions, Reasons, and Causes, in Essays on Actions and Events