Combining Texts

All the ideas for 'Leibniz: Guide for the Perplexed', 'Could There Be Unicorns?' and 'A Study of Concepts'

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23 ideas

2. Reason / D. Definition / 13. Against Definition
12585 Most people can't even define a chair [Peacocke]
4. Formal Logic / D. Modal Logic ML / 1. Modal Logic
16951 It was realised that possible worlds covered all modal logics, if they had a structure [Dummett]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / a. Systems of modal logic
16952 If something is only possible relative to another possibility, the possibility relation is not transitive [Dummett]
16953 Relative possibility one way may be impossible coming back, so it isn't symmetrical [Dummett]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / d. System T
16960 If possibilitiy is relative, that might make accessibility non-transitive, and T the correct system [Dummett]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / g. System S4
16958 In S4 the actual world has a special place [Dummett]
9. Objects / B. Unity of Objects / 2. Substance / d. Substance defined
19347 Substance needs independence, unity, and stability (for individuation); also it is a subject, for predicates [Perkins]
10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds
16957 Possible worlds aren't how the world might be, but how a world might be, given some possibility [Dummett]
10. Modality / E. Possible worlds / 1. Possible Worlds / c. Possible worlds realism
16959 If possible worlds have no structure (S5) they are equal, and it is hard to deny them reality [Dummett]
12. Knowledge Sources / B. Perception / 1. Perception
12581 Perceptual concepts causally influence the content of our experiences [Peacocke]
12. Knowledge Sources / B. Perception / 6. Inference in Perception
12579 Perception has proto-propositions, between immediate experience and concepts [Peacocke]
15. Nature of Minds / B. Features of Minds / 1. Consciousness / f. Higher-order thought
12586 Consciousness of a belief isn't a belief that one has it [Peacocke]
18. Thought / D. Concepts / 1. Concepts / b. Concepts in philosophy
18568 Philosophy should merely give necessary and sufficient conditions for concept possession [Peacocke, by Machery]
18571 Peacocke's account of possession of a concept depends on one view of counterfactuals [Peacocke, by Machery]
18572 Peacocke's account separates psychology from philosophy, and is very sketchy [Machery on Peacocke]
18. Thought / D. Concepts / 3. Ontology of Concepts / b. Concepts as abilities
12577 Possessing a concept is being able to make judgements which use it [Peacocke]
12578 A concept is just what it is to possess that concept [Peacocke]
12587 Employing a concept isn't decided by introspection, but by making judgements using it [Peacocke]
18. Thought / D. Concepts / 4. Structure of Concepts / b. Analysis of concepts
12584 An analysis of concepts must link them to something unconceptualized [Peacocke]
18. Thought / D. Concepts / 4. Structure of Concepts / f. Theory theory of concepts
9335 Concepts are constituted by their role in a group of propositions to which we are committed [Peacocke, by Greco]
19. Language / B. Reference / 1. Reference theories
9336 A concept's reference is what makes true the beliefs of its possession conditions [Peacocke, by Horwich]
23. Ethics / C. Virtue Theory / 1. Virtue Theory / d. Virtue theory critique
16956 To explain generosity in a person, you must understand a generous action [Dummett]
26. Natural Theory / B. Natural Kinds / 7. Critique of Kinds
16954 Generalised talk of 'natural kinds' is unfortunate, as they vary too much [Dummett]