Combining Philosophers

All the ideas for William S. Jevons, Nicholas of Autrecourt and John Etchemendy

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6 ideas

3. Truth / F. Semantic Truth / 1. Tarski's Truth / c. Meta-language for truth
'Snow is white' depends on meaning; whether snow is white depends on snow [Etchemendy]
3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth
We can get a substantive account of Tarski's truth by adding primitive 'true' to the object language [Etchemendy]
5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
Etchemendy says fix the situation and vary the interpretation, or fix interpretations with varying situations [Etchemendy, by Read]
Validity is where either the situation or the interpretation blocks true premises and false conclusion [Etchemendy, by Read]
6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism
I hold that algebra and number are developments of logic [Jevons]
9. Objects / E. Objects over Time / 10. Beginning of an Object
Generation is when local motions aggregate to become a single subject [Nicholas of Autrecourt]