display all the ideas for this combination of philosophers
3 ideas
16013 | Nothing necessary can come into existence, since it already 'is' [Kierkegaard] |
Full Idea: Can the necessary come into existence? That is a change, and everything that comes into existence demonstrates that it is not necessary. The necessary already 'is'. | |
From: Søren Kierkegaard (Philosophical Fragments [1844], p.74) | |
A reaction: [SY] |
12428 | Many necessities are inexpressible, and unknowable a priori [Kitcher] |
Full Idea: There are plenty of necessary truths that we are unable to express, let alone know a priori. | |
From: Philip Kitcher (A Priori Knowledge Revisited [2000], §II) | |
A reaction: This certainly seems to put paid to any simplistic idea that the a priori and the necessary are totally coextensive. We might, I suppose, claim that all necessities are a priori for the Archangel Gabriel (or even a very bright cherub). Cf. Idea 12429. |
12429 | Knowing our own existence is a priori, but not necessary [Kitcher] |
Full Idea: What is known a priori may not be necessary, if we know a priori that we ourselves exist and are actual. | |
From: Philip Kitcher (A Priori Knowledge Revisited [2000], §II) | |
A reaction: Compare Idea 12428, which challenges the inverse of this relationship. This one looks equally convincing, and Kripke adds other examples of contingent a priori truths, such as those referring to the metre rule in Paris. |