A is A is a redundant and rhetorical and is "logically" tautological and not needed.

A=A is correct & (t)rue in as much as all of our rationality (and sanity) allows requires it.

Yet, in either case, looking above the A on the left is not the same data as the A on the right, and the adherence to the idea that this data is (like) that data, is not a requirement to being (thought-full) a human, although to engage in the social world, the public world, a rational distinctive world- it is required for People to get a sense of value. Value of themselves or value of the "material" they own for Capital exchange.

A is A.

Existence exists.

Consciousness is conscious.