References
Jan Łukasiewicz:Z zagadnień logiki i filozofii: Wybór Pism. Warszawa 1960, PWN. English translation of this book is in print.
Sprawozdania z posiedzeń Towarzystwa Naukowego Warszawskiego, Wydział III, t. XXIII, 1930.
While writing the expressions ofŁukasiewicz's three-valued logic I use his parenthesisless symbolism.
The indices of theorems from which this formulae are derived are given in parenthesis. The theorems the indices of which are bold-faced play an essential role in proving of Th. II.
By the symbol α(p/β) will be denoted the formula resulting from α by substituting β for the sentential variablep.
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Allatum est die 12 Julii 1966
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Słupecki, J., Bryll, G. & Prucnal, T. Some remarks on three-valued logic of J. Łukasiewicz. Stud Logica 21, 45–66 (1967). https://doi.org/10.1007/BF02123418
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DOI: https://doi.org/10.1007/BF02123418