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July 1978 Note about Ł ukasiewicz's theorem concerning the system of axioms of the implicational propositional calculus.
Bolesław Sobociński
Notre Dame J. Formal Logic 19(3): 457-460 (July 1978). DOI: 10.1305/ndjfl/1093888407
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Vol.19 • No. 3 • July 1978
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