Combining Texts

All the ideas for 'Of liberty, Fate and God's grace', 'On Note L to Bayle's 'Rorarius'' and 'Modal Logic within Counterfactual Logic'

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10 ideas

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]
9. Objects / D. Essence of Objects / 7. Essence and Necessity / b. Essence not necessities
13082 The complete concept of an individual includes contingent properties, as well as necessary ones [Leibniz]
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]
15. Nature of Minds / B. Features of Minds / 2. Unconscious Mind
19355 The soul doesn't understand many of its own actions, if perceptions are confused and desires buried [Leibniz]
15. Nature of Minds / C. Capacities of Minds / 2. Imagination
14628 Imagination is important, in evaluating possibility and necessity, via counterfactuals [Williamson]
17. Mind and Body / A. Mind-Body Dualism / 5. Parallelism
19350 We should say that body is mechanism and soul is immaterial, asserting their independence [Leibniz]
26. Natural Theory / A. Speculations on Nature / 4. Mathematical Nature
19356 Minds unconsciously count vibration beats in music, and enjoy it when they coincide [Leibniz]