An Introduction to the Logic of the Sciences
An Introduction to the Philosophy of Knowledge
What Philosophy Can Do
Knowledge and Infallibility
The logic of party democracy
Problems of the Logic of Scientific Knowledge (Synthese Library, 25)
The Philosophy of Science and Economics
Education, Persons and Society: A Philosophical Enquiry (Modern Introductions to Philosophy)
Belief, Change and Forms of Life (Library of Philosophy & Religion)
Modern deductive logic;: An introduction to its techniques and significance (Modern introductions to philosophy)