Combining Texts

All the ideas for 'Science and Method', 'Philosophy in the Tragic Age of the Greeks' and 'Why Propositions cannot be concrete'

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6 ideas

6. Mathematics / A. Nature of Mathematics / 2. Geometry
One geometry cannot be more true than another [Poincaré]
18. Thought / E. Abstraction / 1. Abstract Thought
The idea of abstract objects is not ontological; it comes from the epistemological idea of abstraction [Plantinga]
Theists may see abstract objects as really divine thoughts [Plantinga]
19. Language / D. Propositions / 3. Concrete Propositions
If propositions are concrete they don't have to exist, and so they can't be necessary truths [Plantinga]
19. Language / D. Propositions / 4. Mental Propositions
Propositions can't just be in brains, because 'there are no human beings' might be true [Plantinga]
23. Ethics / F. Existentialism / 5. Existence-Essence
It is absurd to think you can change your own essence, like a garment [Nietzsche]