Combining Texts

All the ideas for 'reports', 'Letters to Mersenne' and 'The Concept of Logical Consequence'

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8 ideas

1. Philosophy / G. Scientific Philosophy / 3. Scientism

3653	My Meditations are the complete foundation of my physics [Descartes]

3. Truth / A. Truth Problems / 2. Defining Truth

4736	Truth is such a transcendentally clear notion that it cannot be further defined [Descartes]

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

18812

Split out the logical vocabulary, make an assignment to the rest. It's logical if premises and conclusion match [Tarski, by Rumfitt]

5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=

13344

X follows from sentences K iff every model of K also models X [Tarski]

5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models

13343

A 'model' is a sequence of objects which satisfies a complete set of sentential functions [Tarski]

10. Modality / A. Necessity / 8. Transcendental Necessity

3016	Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius]

19. Language / E. Analyticity / 1. Analytic Propositions

13345

Sentences are 'analytical' if every sequence of objects models them [Tarski]

29. Religion / D. Religious Issues / 2. Immortality / b. Soul

3652	I can't prove the soul is indestructible, only that it is separate from the mortal body [Descartes]