Combining Texts

All the ideas for 'Modal Logic as Metaphysics', 'The Meaning of the Word' and 'Modal Logic within Counterfactual Logic'

expand these ideas     |    start again     |     specify just one area for these texts

9 ideas

3. Truth / A. Truth Problems / 2. Defining Truth
6710 You can only define a statement that something is 'true' by referring to its functional possibilities [James]
3. Truth / E. Pragmatic Truth / 1. Pragmatic Truth
22305 If the hypothesis of God is widely successful, it is true [James]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5
14626 In S5 matters of possibility and necessity are non-contingent [Williamson]
10. Modality / A. Necessity / 1. Types of Modality
14625 Necessity is counterfactually implied by its negation; possibility does not counterfactually imply its negation [Williamson]
10. Modality / B. Possibility / 8. Conditionals / a. Conditionals
14623 Strict conditionals imply counterfactual conditionals: □(A⊃B)⊃(A□→B) [Williamson]
10. Modality / B. Possibility / 9. Counterfactuals
14624 Counterfactual conditionals transmit possibility: (A□→B)⊃(◊A⊃◊B) [Williamson]
10. Modality / C. Sources of Modality / 1. Sources of Necessity
14531 Rather than define counterfactuals using necessity, maybe necessity is a special case of counterfactuals [Williamson, by Hale/Hoffmann,A]
10. Modality / E. Possible worlds / 3. Transworld Objects / e. Possible Objects
18925 If talking donkeys are possible, something exists which could be a talking donkey [Williamson, by Cameron]
15. Nature of Minds / C. Capacities of Minds / 2. Imagination
14628 Imagination is important, in evaluating possibility and necessity, via counterfactuals [Williamson]