I On the Philosophical Interpretation of Logic: An Aristotelian Dialogue -- II On the Categorical Syllogism -- III CS(n): An Extension of CS -- IV Some Results of Investigation of the Syllogism and their Philosophical Consequences -- V Formalization of a Scholastic Solution of the Paradox of the โ{128}{152}Liarโ{128}{153} -- VI On the Syntactical Categories -- VII The Logical Analysis of Existence -- VIII On Analogy -- IX The Problem of Universals