"Propositions in Prepositional Logic Provable Only by Indirect Proofs."

Jan Ekman (1998)

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DOI: 10.1002/MALQ.19980440105

access: closed

type: Journal Article

metadata version: 2017-05-17

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Jan Ekman:
Propositions in Prepositional Logic Provable Only by Indirect Proofs. Math. Log. Q. 44: 69-91 (1998)

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