Dr Bernhard Ritter is Erwin Schrödinger Research Fellow at the University of Paris 1 Pantheon-Sorbonne, the Center for Subjectivity Research of the University of Copenhagen, and the University of Graz. He has published articles on Kant and Wittgenstein and co-edited Wittgenstein's Whewell's Court Lectures: Cambridge 1938–1941 (2017)."

• ​Part I: Mirages of Metaphysical Language.- 1. Wittgenstein on 'Grammatical' and 'Metaphysical' Propositions.- 2. The Question of Linguistic Idealism.- 3. Wittgenstein and What We Can Say.- 4. Language and Communication in Kant's Theoretical Philosophy.- 5. Transcendental Illusion in the First Antinomial Conflict.- 6. Kant's Transcendental Idealism.- Part II: Kant's Argument Against Problematic Idealism.- 7. The Position of Problematic Idealism.- 8. Scepticism and Idealism in Descartes.- 9. Transcendental Proofs and Indubitability.- 10. The Subject in the Refutation of Idealism.- 11. Transcendental Realism and the Fourth A-Paralogism.- Part III: Wittgenstein: Idealism, Solipsism, and Scepticism.- 12. Solipsism in The Blue Book.- 13. Use as Subject and Use as Object of 'I' Revisited.- 14. Idealism/Solipsism in the Investigations.- 15. On Certainty and Metaphysical Doubt.- Part IV: Limits of Transcendentalism.- 16. Kant's Second Analogy and the Schema of Causality.- 17. 'Perception' in §26 of the Transcendental Deduction.- 18. Wittgenstein on Private Ostensive Definition.- 19. A Prussian Wittgenstein and a Viennese Kant?.

Dr Bernhard Ritter is Erwin Schrödinger Research Fellow at the University of Paris 1 Pantheon-Sorbonne, the Center for Subjectivity Research of the University of Copenhagen, and the University of Graz. He has published articles on Kant and Wittgenstein and co-edited Wittgenstein's Whewell's Court Lectures: Cambridge 1938–1941 (2017)."

• ​Part I: Mirages of Metaphysical Language.- 1. Wittgenstein on 'Grammatical' and 'Metaphysical' Propositions.- 2. The Question of Linguistic Idealism.- 3. Wittgenstein and What We Can Say.- 4. Language and Communication in Kant's Theoretical Philosophy.- 5. Transcendental Illusion in the First Antinomial Conflict.- 6. Kant's Transcendental Idealism.- Part II: Kant's Argument Against Problematic Idealism.- 7. The Position of Problematic Idealism.- 8. Scepticism and Idealism in Descartes.- 9. Transcendental Proofs and Indubitability.- 10. The Subject in the Refutation of Idealism.- 11. Transcendental Realism and the Fourth A-Paralogism.- Part III: Wittgenstein: Idealism, Solipsism, and Scepticism.- 12. Solipsism in The Blue Book.- 13. Use as Subject and Use as Object of 'I' Revisited.- 14. Idealism/Solipsism in the Investigations.- 15. On Certainty and Metaphysical Doubt.- Part IV: Limits of Transcendentalism.- 16. Kant's Second Analogy and the Schema of Causality.- 17. 'Perception' in §26 of the Transcendental Deduction.- 18. Wittgenstein on Private Ostensive Definition.- 19. A Prussian Wittgenstein and a Viennese Kant?.