"On a modal system of R. A. Bull's."

Dolph Ulrich (1976)

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DOI: 10.1305/NDJFL/1093887646

access: closed

type: Journal Article

metadata version: 2020-05-21

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Dolph Ulrich:
On a modal system of R. A. Bull's. Notre Dame J. Formal Log. 17(3): 479-480 (1976)

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