Acknowledgements

Thanks to Mark Colyvan, Mary Leng, Kathleen Okruhlik, Glenn Parsons, James Davies, and Mike Stuart for contributions, discussions, or critical readings over the past several years. I have tried out some of this material in talks to various audiences and used parts in various philosophy of mathematics courses. I am grateful to all who heard them for numerous helpful comments.

Chapters 3 and 4 are adapted with considerable revision from articles published in the Croatian Journal of Philosophy and Dialogue, respectively. I am grateful to them for permission to use that material here. Some late sections of Chapter 3 are adapted from a review written with James Davies; I'm grateful to him for permission to use this material. Chapter 4 on metaphor is adapted from a joint article with Glenn Parsons. Consequently, I am doubly grateful to him—for permission to use our joint material and for extensive discussions on the whole topic of naturalism. A great many thanks also go to Mike Stuart, who read the penultimate draft of the whole book and provided a great many useful suggestions, and to Kevin Kuhl, who provided the index.

Finally, I am grateful to Social Sciences and Humanities Research Council of Canada for its continuing generous financial support.