Wyniki
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Some conections between Cn and Cn-1 and dCn
Maciej Spasowski
Bulletin of the Section of Logic , 2 /1 (1973) s. 46-49 -
The degrees of completeness of dual counterparts of Lukasiewicz sentential calculi
Maciej Spasowski
Bulletin of the Section of Logic , 4 /4 (1975) s. 163-167