affirm


تاربرگ‌های پیموده‌شده در این نشست: Some Theorems About the Sentential Calculi of Lewis and Heyting ⟩ Jean Buridan ⟩ lattice ⟩ Kuratowski axiom set ⟩ Logical-Historical Analysis of Gödel's Metatheorem in Modal Logic ⟩ Jan Łukasiewicz