Combining Texts

All the ideas for 'Introduction to 'Modality'', 'Two letters on mind' and 'The Concept of Logical Consequence'

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

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5 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

14181

Validity is where either the situation or the interpretation blocks true premises and false conclusion [Etchemendy, by Read]

14180

Etchemendy says fix the situation and vary the interpretation, or fix interpretations with varying situations [Etchemendy, by Read]

8. Modes of Existence / C. Powers and Dispositions / 2. Powers as Basic

16635

Incorporeal substances are powers or forces [Descartes, by Pasnau]

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

14528

Maybe modal thought is unavoidable, as a priori recognition of necessary truth-preservation in reasoning [Hale/Hoffmann,A]

26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / c. Matter as extension

16684

Impenetrability only belongs to the essence of extension [Descartes]