Combining Texts

All the ideas for 'fragments/reports', 'Letters to Mersenne' and 'Gentzen's Analysis of First-Order Proofs'

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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 / A. Overview of Logic / 1. Overview of Logic

13831

Logic is based on transitions between sentences [Prawitz]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

13825

Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13823

In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]

26. Natural Theory / A. Speculations on Nature / 5. Infinite in Nature

1748	Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius]

27. Natural Reality / G. Biology / 3. Evolution

5989	Archelaus said life began in a primeval slime [Archelaus, by Schofield]

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]