Preface 1. Introducing substance concepts 2. Substances: the ontology 3. Classifying, identifying, and the function of substance concepts 4. The nature of abilities: how is extension determined? 5. More mama, more milk and more mouse: the structure and development of substance concepts 6. Substance concepts through language: knowing the meanings of words 7. How we make our ideas clear: epistemology for empirical concepts 8. Content and vehicle in perception 9. Sames versus sameness in conceptual contents and vehicles 10. Grasping sameness 11. In search of Strawsonian modes of presentation 12. Rejecting identity judgments and Fregean modes 13. Knowing what I'm thinking of 14. How extensions of new substance concepts are fixed: how substance concepts acquire intentionality 15. Cognitive luck: substance concepts in an evolutionary frame Appendices References Index.
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