Deontic Logic: Introductory and Systematic Readings
Leśniewski’s Systems Protothetic
Leśniewski's Systems of Logic and Foundations of Mathematics
Axiomatic Formal Ontology
Boolean Calculus of Differences
Problems of the Logic of Scientific Knowledge (Synthese Library, 25)
Pictorial and Formal Aspects of Shape and Shape Grammars (Interdisciplinary Systems Research)
Essays on Explanation and Understanding Studies in the Foundations of Humanities and Social Sciences
Alfred Tarski: Philosophy of Language and Logic
Statistische Erklärungen. Deduktiv-nomologische Erklärungen in präzisen Modellsprachen. Offene Probleme