On systems of strict implication

DOI10.2748/TMJ/1178245557zbMath0044.00203OpenAlexW2036308926MaRDI QIDQ2649515

Naoto Yonemitsu

Publication date: 1951

Published in: Tôhoku Mathematical Journal. Second Series (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2748/tmj/1178245557

zbMATH Keywords

philosophy and foundations of mathematics

Cites Work

• Implication and deducibility
• Emch's calculus and strict implication
• Deducibility with respect to necessary and impossible propositions
• Proof that there are infinitely many modalities in Lewis's system S₂
• On the number of complete extensions of the Lewis systems of sentential calculus

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