Combining Philosophers

Ideas for B Hale / C Wright, George Boolos and Karl Marx

expand these ideas     |    start again     |     choose another area for these philosophers

display all the ideas for this combination of philosophers

---

5 ideas

18. Thought / E. Abstraction / 7. Abstracta by Equivalence

8693	An 'abstraction principle' says two things are identical if they are 'equivalent' in some respect [Boolos]

10630

Abstracted objects are not mental creations, but depend on equivalence between given entities [Hale/Wright]

8786	One first-order abstraction principle is Frege's definition of 'direction' in terms of parallel lines [Hale/Wright]

12227

Abstractionism needs existential commitment and uniform truth-conditions [Hale/Wright]

12228

Equivalence abstraction refers to objects otherwise beyond our grasp [Hale/Wright]