Combining Texts

All the ideas for 'Locke on Essences and Kinds', 'Does Conceivability Entail Possibility?' and 'Wittgenstein's 'Tractatus Logico-Philosophicus''

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7 ideas

4. Formal Logic / A. Syllogistic Logic / 1. Aristotelian Logic
23505 Aristotelian logic cannot express 'Everyone loves someone' [White,RM]
9. Objects / D. Essence of Objects / 13. Nominal Essence
15645 Nominal essence are the observable properties of things [Eagle]
15642 If kinds depend only on what can be observed, many underlying essences might produce the same kind [Eagle]
15643 Nominal essence mistakenly gives equal weight to all underlying properties that produce appearances [Eagle]
10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / a. Conceivable as possible
16473 Modal Rationalism: conceivability gives a priori access to modal truths [Chalmers, by Stalnaker]
19258 Evaluate primary possibility from some world, and secondary possibility from this world [Chalmers, by Vaidya]
26. Natural Theory / B. Natural Kinds / 4. Source of Kinds
15641 Kinds are fixed by the essential properties of things - the properties that make it that kind of thing [Eagle]