Combining Texts

All the ideas for 'works', 'Second Philosophy' and 'Three Grades of Modal Involvement'

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7 ideas

5. Theory of Logic / A. Overview of Logic / 7. Second-Order Logic

10594

Henkin semantics is more plausible for plural logic than for second-order logic [Maddy]

5. Theory of Logic / C. Ontology of Logic / 1. Ontology of Logic

12219

Whether a modal claim is true depends on how the object is described [Quine, by Fine,K]

5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction

10121

Contradiction is not a sign of falsity, nor lack of contradiction a sign of truth [Pascal]

5. Theory of Logic / G. Quantification / 1. Quantification

10922

Objects are the values of variables, so a referentially opaque context cannot be quantified into [Quine]

9. Objects / D. Essence of Objects / 9. Essence and Properties

10923

Aristotelian essentialism says a thing has some necessary and some non-necessary properties [Quine]

10. Modality / A. Necessity / 2. Nature of Necessity

10921

Necessity can attach to statement-names, to statements, and to open sentences [Quine]

10. Modality / A. Necessity / 11. Denial of Necessity

10924

Necessity is in the way in which we say things, and not things themselves [Quine]