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  1. (3 other versions)Symbolic Logic.C. I. Lewis & C. H. Langford - 1932 - Erkenntnis 4 (1):65-66.
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  • Mathematical Logic.Morton G. White & Willard Van Orman Quine - 1942 - Philosophical Review 51 (1):74.
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  • An Essay in Modal Logic.G. P. Henderson - 1953 - Philosophical Quarterly 3 (12):287-287.
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