Semantic Analyses for Dyadic Deontic Logic.- Some Remarks Concerning Many-Valued Propositional Logics.- Conditional Obligation.- Remarks on Interpersonal Utility Theory.- On the Proper Treatment of Quantifiers in Montague Semantics.- Extracting Information from Logical Proofs.- A New Approach to the Logical Theory of Actions and Causality.- Some Basic Concepts of Action.- Some Remarks Concerning Logical and Ontological Theories.- Combined Evidence.- Solution to a Problem Raised by Stig Kanger and a Set Theoretical Statement Equivalent to the Axiom of Choice.- On Characterizing Elementary Logic.- Rules and Derived Rules.- A Program for Pragmatics.- Models.- Remarks on Logic and Probability.- Analytic and Synthetic Arithmetical Statements.- Index of Names.- Tabula Gratulatoria.