Combining Texts

All the ideas for 'works', 'Two Kinds of Possibility' and 'The Logic of Infinity'

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

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6 ideas

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]

6. Mathematics / C. Sources of Mathematics / 10. Constructivism / d. Predicativism

18203

Avoid non-predicative classifications and definitions [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]