| Title / Condition | Highlights | Price |
|---|---|---|
| Remarks on the Foundations of Mathematics Wittgenstein, Ludwig / Used - Hardcover | Dust Jacket | $122.00 |
| Rules and Representations Chomsky, Noam / Used - Hardcover | Dust Jacket | $80.00 |
| Translations from the Philosophical Writings of Gottlob Frege Frege, Gottlob [Peter Geach and Max Black, editors] / Used - Hardcover | Dust Jacket | $57.50 |
| Remarks on the Foundations of Mathematics Wittgenstein, Ludwig: / Used - Hardcover | $51.49 | |
| The Foundations of Arithmetic A logico-mathematical enquiry into the concept of number Gottlob Frege, Translated by J. L. Austin / Used - Hardcover | Dust Jacket | $50.00 |