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Single Idea 14714

[filed under theme 10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / b. Conceivable but impossible ]

Full Idea

It seems apriori coherent that there could be a necessarily existing god, and that there could be no such god - but they can't both be true. Other examples include unprovable mathematical necessities

Gist of Idea

Contradictory claims about a necessary god both seem apriori coherent

Source

Laura Schroeter (Two-Dimensional Semantics [2010], 2.3.4)

Book Ref

'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [plato.stanford.edu], p.29


The 10 ideas with the same theme [seems conceivable when not actually possible]:

Pythagoras' Theorem doesn't cease to be part of the essence of triangles just because we doubt it [Arnauld on Descartes]
We can imagine a point swelling and contracting - but not how this could be done [Hobbes]
Impossibilites are easily conceived in mathematics and geometry [Reid, by Molnar]
It is possible to conceive what is not possible [Shoemaker]
If Goldbach's Conjecture is true (and logically necessary), we may be able to conceive its opposite [Harré/Madden]
The impossible can be imagined as long as it is a bit vague [Lewis]
One can wrongly imagine two things being non-identical even though they are the same (morning/evening star) [Chalmers]
If claims of metaphysical necessity are based on conceivability, we should be cautious [Segal]
Conceivability may indicate possibility, but literary fantasy does not [Varzi]
Contradictory claims about a necessary god both seem apriori coherent [Schroeter]