The existence of A must necessarily be a corollary to the relativity of A to B.

That is:

A cannot be A unless it exists relative to something else…in this case B, because A in a vacuum of its own existential absolutism is infinitely A, and infinity cannot have a set value (or definition). So, it can be logically said that the existence of A is a direct function of the existence of B.  And yet, in order to be relative to B, A must, in fact, exist infinitely and absolutely as A…in order that it can be said that A is truly, itself, relative to B.

Good luck!!