Translator's Note \ Acknowledgements \ 1. Introduction Jacques Lautman \ 2. Bibliography of secondary material on the work of Albert Lautman \ 3. Albert Lautman and the Creative Dialectic of Modern Mathematics Fernando Zalamea \ 4. Preface to the 1977 Edition Jean Dieudonné \ 5. Considerations on Mathematical Logic \ 6. Mathematics and Reality \ 7. International Congress of the Philosophy of the Sciences \ 8. On the Reality Inherent to Mathematical Theories \ 9. The Axiomatic and the Method of Division \ 10. Essay on the Unity of the Mathematical Sciences in their Current Development \ 11. Essay on the Notions of Structure and Existence in Mathematics \ 12. New Research on the Dialectical Structure of Mathematics \ 13. Letter to Mathematician Maurice Fréchet \ 14. Symmetry and Dissymmetry in Mathematics and in Physics \ Bibliography \ Index.