Combining Texts

All the ideas for 'fragments/reports', 'Conditional Assertion and Restricted Quantification' and 'The Concept of Logical Consequence'

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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]

14. Science / C. Induction / 5. Paradoxes of Induction / b. Raven paradox

19000

Read 'all ravens are black' as about ravens, not as about an implication [Belnap]

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]