Leibniz¿s Calculus of Strict Implication.- Leibniz¿s Modal Calculus of Concepts.- The Logic of Conditions.- Philosophical Pragmatism in Poincare.- A Note on Zeno B3.- Generalizations and Strengthenings of G¿del¿s Incompleteness Theorem.- The Logical Work of Mordchaj Wajsberg.- Notes on Wajsberg¿s Proof of the Separation Theorem.- Logical Analysis of Thomism The Polish Programme that originated in 1930¿s.- On Justification of Questions.- The Logic of Types.- Systems of Computer-Aided Reasoning for Mathematics and Natural Language.- Two Reports on Educational Applications of MIZAR MSE, a System of Computer-Aided Reasoning The application of MIZAR MSE in a course in logic.- The use of MIZAR MSE in a course in foundations of geometry.- Literature.- Index of Names.