Lingua Universalis vs. Calculus Ratiocinator
An Ultimate Presupposition of Twentieth-century Philosophy »

The Principles of Mathematics Revisited
This volume argues that many of the basic assumptions common to logic, philosophy of mathematics and metaphysics are in need of change. The author proposes a... »

Language, Truth And Logic In Mathematics
Language, Truth and Logic in Mathematics »

Paradigms For Language Theory And Other Essays
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The Logic of Epistemology and the Epistemology of Logic
Selected Essays »

Philosophy and Logic in Search of the Polish Tradition
Essays in Honour of Jan Wolenski on the Occasion of His 60th Birthday »

Ludwig Wittgenstein, Half-Truths and One-And-A-Half-Truths
Half-Truths And One-And-A-Half-Truths »

On Godel
On Godel »

Analyses of Aristotle
Aristotle serves as an example of a thinker who did not rely on the distinction between the allegedly different Fregean senses, thereby shedding new light on... »

Knowledge and Belief - An Introduction to the Logic of the Two Notions
An Introduction To The Logic Of The Two Notions »