WITTGENSTEIN, L. Philosophische Bemerkungen. (1964). -- Id. Philosophische Grammatik. (1969). -- Id. Remarks on the Foundations of Mathematics. (1956). -- Id. On Certainty. 1974. -- 4 vols. Ocl. -- Id. Letters to Russell, Keynes and Moore. (1974). Obrds. w. dust-j. -- Id. Letters to C.K. Ogden. (1973). Obrds. w. dust-j. -- And 4 o. by W. (10).
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