The External World and Our Knowledge of it: Hume's Critical ...
Fred Wilson
In V. Chappell, ed., Hume, 169–86. Lewis, C.I., and C.H. Langford. Symbolic Logic. 2nd ed. New York: Dover, 1959. Lewis, D. 'Moore's Realism.' In L. Addis and D. Lewis, Moore and Ryle: Two Ontologists. The Hague: Nijhoff, 1965. Livingston ...