Combining Philosophers

Ideas for Moses Schönfinkel, Andy Douglas and Alex Orenstein

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3 ideas

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic

17699

Variables are auxiliary notions, and not part of the 'eternal' essence of logic [Schönfinkel]

5. Theory of Logic / G. Quantification / 1. Quantification

8452	Traditionally, universal sentences had existential import, but were later treated as conditional claims [Orenstein]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

8475	The substitution view of quantification says a sentence is true when there is a substitution instance [Orenstein]