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An Extension of “Fitch's rules”
Author(s) -
Siemens David F.
Publication year - 1961
Publication title -
mathematical logic quarterly
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.473
H-Index - 28
eISSN - 1521-3870
pISSN - 0942-5616
DOI - 10.1002/malq.19610071107
Subject(s) - siemens , extension (predicate logic) , citation , computer science , library science , programming language , physics , quantum mechanics