Mathieu Marion, FRSC is full professor at the Université du Québec à Montréal, Canada. He is the author of Wittgenstein, Finitism and the Foundations of Mathematics, and of numerous articles on the philosophy of Wittgenstein.Jimmy Plourde is Assistant professor of Analytic philosophy at the Université du Québec à Trois-Rivières. His research interests focus on Wittgenstein’s early philosophy and its context on which he has published several articles

• 1. Introduction, Mathieu Marion and Jimmy Plourde.- 2. Wittgenstein’s pre-Tractatus Conception of Philosophy: From the originally assumed view of the task of philosophy to the symbolic turn and isomorphism, Jimmy Plourde.- 3. The Early Wittgenstein’s Atomic Logic, Categories and the Necessary A Posteriori, Fraser MacBride.- 4. A Path to the Tractatus: From Facts and Forms through Picturing to Modality, Sanford Shieh.- 5. Essence and Modality: From Husserl to Wittgenstein, Kevin Mulligan.- 6. Is There Room for a Transcendental Aesthetic in Wittgenstein’s Early Thought?, Hanne Appelqvist.- 7. How does a tautology say nothing?, Ian Proops.- 8. Analysis of a Conversation on the Sheffer stroke and W-F schemes between Bertrand Russell and Ludwig Wittgenstein in April 1913,Martin Pilch.- 9. Wittgenstein on Negation, Bipolarity, and Symmetry, Guido Bonino.- 10. “To fulfill the purposeof existence”: Wittgenstein’s Notebooks and the search for meaning, Janyne Sattler.