Simon B. Duffy is a Senior Lecturer in Philosophy at Yale-NUS College, Singapore, and Honorary Research Associate in the Department of Philosophy at the University of Sydney, Australia. He is the author of The Logic of Expression: Quality, Quantity, and Intensity in Spinoza, Hegel and Deleuze (2006).

• Acknowledgements \ List of Abbreviations \ Introduction \ 1. Leibniz and the Concept of the Infinitesimal \ 2. Maimon's Critique of Kant's Approach to Mathematics \ 3. Bergson and Riemann on Qualitative Multiplicity \ 4. Lautman's Concept of the Mathematical Real \ 5. Badiou and Contemporary Mathematics \ Conclusion \ Notes \ Bibliography \ Index

Simon B. Duffy is a Senior Lecturer in Philosophy at Yale-NUS College, Singapore, and Honorary Research Associate in the Department of Philosophy at the University of Sydney, Australia. He is the author of The Logic of Expression: Quality, Quantity, and Intensity in Spinoza, Hegel and Deleuze (2006).

• Acknowledgements \ List of Abbreviations \ Introduction \ 1. Leibniz and the Concept of the Infinitesimal \ 2. Maimon's Critique of Kant's Approach to Mathematics \ 3. Bergson and Riemann on Qualitative Multiplicity \ 4. Lautman's Concept of the Mathematical Real \ 5. Badiou and Contemporary Mathematics \ Conclusion \ Notes \ Bibliography \ Index

Simon B. Duffy is a Senior Lecturer in Philosophy at Yale-NUS College, Singapore, and Honorary Research Associate in the Department of Philosophy at the University of Sydney, Australia. He is the author of The Logic of Expression: Quality, Quantity, and Intensity in Spinoza, Hegel and Deleuze (2006).

• Acknowledgements \ List of Abbreviations \ Introduction \ 1. Leibniz and the Concept of the Infinitesimal \ 2. Maimon's Critique of Kant's Approach to Mathematics \ 3. Bergson and Riemann on Qualitative Multiplicity \ 4. Lautman's Concept of the Mathematical Real \ 5. Badiou and Contemporary Mathematics \ Conclusion \ Notes \ Bibliography \ Index