Combining Philosophers

Ideas for Rescher,N/Oppenheim,P, Michael Hallett and Gilbert Ryle

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2 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

13979

Logic studies consequence, compatibility, contradiction, corroboration, necessitation, grounding.... [Ryle]

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

10800

The values of variables can't determine existence, because they are just expressions [Ryle, by Quine]