On 4/4/2021 at 8:12 PM, Boydstun said:
. . .
PRIMACIES OF EXISTENCE
. . . Things in all that they are are what we know part of and know that our known is only part of the all there to be known. Further, existence of a thing is nothing more than—indeed, it is identically the same as—existence of all that a thing is.[10]
[10] See further, Baumgarten 1757, §§15, 37; Kant, KrV A324–27 B380–83. . . .
References
Baumgarten, A. 1757 [1739]. Metaphysics. 4th ed. In Fugate and Hymers 2013.
Kant, I. 1781, 1787. Critique of Pure Reason. W. S. Pluhar, translator. 1996. Indianapolis: Hackett Publishing.
Additionally, “existence is identity” in mathematics means not only that any mathematical fact will be correct statement of an identity, but that the identity is the existence. Concerning concrete existence, “existence is identity” must include in that identity: specification of spatial and temporal relations, for it to be the case that the identity is the existence.
If we add that all existence outside existence in mathematics (or in logic, e.g. Löenheim-Skolem Theorem) is existence in physical space and time, then the ontological argument, of Anselm and Descartes, for the existence of God fails with respect to non-mathematical existence. From a set of predicates not including specification of spatial and temporal relations, the existence of God cannot be inferred, and inclusion by fiat of Its spatial relations (everywhere) and temporal relations (everywhen) in a mere conception does amount to the existence of God in that usual intended sense of existence.* Whereas, Existence itself is not something concluded from a conception, but is simply there all around us and is the physical and epistemological context for any knowing of any existent or identity.
* Cf. Christian August Crusius (1745) in Leibniz & Kant, Brandon C. Look, editor, (Oxford 2021), pp. 61–66.

