Combining Texts

All the ideas for 'fragments/reports', 'Investigations into Logical Deduction' and 'Assertion'

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5 ideas

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

13832

Natural deduction shows the heart of reasoning (and sequent calculus is just a tool) [Gentzen, by Hacking]

19. Language / F. Communication / 2. Assertion

18052

An assertion aims to add to the content of a context [Stalnaker, by Magidor]

19. Language / F. Communication / 5. Pragmatics / b. Implicature

14718

An assertion is an attempt to rule out certain possibilities, narrowing things down for good planning [Stalnaker, by Schroeter]

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]