Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Michael Frede and Gottlob Frege

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8 ideas

7. Existence / A. Nature of Existence / 1. Nature of Existence

8643	Affirmation of existence is just denial of zero [Frege]

11008

Existence is not a first-order property, but the instantiation of a property [Frege, by Read]

7. Existence / A. Nature of Existence / 2. Types of Existence

19470

Thoughts in the 'third realm' cannot be sensed, and do not need an owner to exist [Frege]

7. Existence / A. Nature of Existence / 3. Being / i. Deflating being

5657	Frege's logic showed that there is no concept of being [Frege, by Scruton]

7. Existence / A. Nature of Existence / 4. Abstract Existence

8911	If abstracta are non-mental, quarks are abstracta, and yet chess and God's thoughts are mental [Rosen on Frege]

8634	The equator is imaginary, but not fictitious; thought is needed to recognise it [Frege]

7. Existence / A. Nature of Existence / 6. Criterion for Existence

18899

Frege takes the existence of horses to be part of their concept [Frege, by Sommers]

18995

Frege mistakenly takes existence to be a property of concepts, instead of being about things [Frege, by Yablo]