Combining Philosophers

Ideas for Douglas Lackey, Robert Hanna and Jens Zimmermann

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5 ideas

5. Theory of Logic / A. Overview of Logic / 4. Pure Logic

11058

Logic is explanatorily and ontologically dependent on rational animals [Hanna]

11072

Logic is personal and variable, but it has a universal core [Hanna]

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

11061

Intensional consequence is based on the content of the concepts [Hanna]

5. Theory of Logic / L. Paradox / 5. Paradoxes in Set Theory / b. Cantor's paradox

21554

Sets always exceed terms, so all the sets must exceed all the sets [Lackey]

5. Theory of Logic / L. Paradox / 5. Paradoxes in Set Theory / c. Burali-Forti's paradox

21553

It seems that the ordinal number of all the ordinals must be bigger than itself [Lackey]