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A natural deduction system for first degree entailment

Tamminga, A. & Tanaka, K. 1999 In : Notre Dame Journal of Formal Logic. 40, 2, p. 258-272 15 p.

Research output: Scientific - peer-reviewArticle

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DOI

This paper is concerned with a natural deduction system for First Degree Entailment (FDE). First, we exhibit a brief history of FDE and of combined systems whose underlying idea is used in developing the natural deduction system. Then, after presenting the language and a semantics of FDE, we develop a natural deduction system for FDE. We then prove soundness and completeness of the system with respect to the semantics. The system neatly represents the four-valued semantics for FDE.
Original languageEnglish
Pages (from-to)258-272
Number of pages15
JournalNotre Dame Journal of Formal Logic
Volume40
Issue number2
StatePublished - 1999

Keywords

  • Lukasiewicz, Jan

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