تاربرگ‌های پیموده‌شده در این نشست: On the completeness of the calculus of logic The completeness of the axioms of the logical function calculus About possibilities in the relative calculus On a Property of the Collection of All Real Algebraic Numbers Some Theorems About the Sentential Calculi of Lewis and Heyting درآمدی به گویایی ناکلاسیک