Combining Texts

All the ideas for 'Science and Method', 'A Problem about Substitutional Quantification?' and 'Two Kinds of Possibility'

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6 ideas

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

10792

The substitutional quantifier is not in competition with the standard interpretation [Kripke, by Marcus (Barcan)]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

10245

One geometry cannot be more true than another [Poincaré]

10. Modality / A. Necessity / 1. Types of Modality

12205

There are two families of modal notions, metaphysical and epistemic, of equal strength [Edgington]

10. Modality / A. Necessity / 5. Metaphysical Necessity

12207

Metaphysical possibility is discovered empirically, and is contrained by nature [Edgington]

10. Modality / A. Necessity / 6. Logical Necessity

12206

Broadly logical necessity (i.e. not necessarily formal logical necessity) is an epistemic notion [Edgington]

12208

An argument is only valid if it is epistemically (a priori) necessary [Edgington]