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The number of nonnormal extensions of S4 - MaRDI portal

The number of nonnormal extensions of S4

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Publication:1104919

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DOI10.1305/NDJFL/1093637775zbMath0648.03009OpenAlexW2037003868MaRDI QIDQ1104919

George F. Schumm

Publication date: 1988

Published in: Notre Dame Journal of Formal Logic (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1305/ndjfl/1093637775

zbMATH Keywords

modal logic S4 nonnormal extensions

Mathematics Subject Classification ID

Modal logic (including the logic of norms) (03B45)

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