Is the self all that can be known to exist?

[Edwardo Piet]

Nor can I.  I can certainly assess specific contradictions and suggest that they may be subtle this or thats, but without complete knowledge I can;t possibly make the claim that no contradictions exist or that my answer to any given contradiction - or indeed my set of answers to sets of contradictions, is an answer to -every- contradiction that may exist.

You can claim that some contradictions exist in some sense. (For example, a contradictory statement can exist in the sense that we can literally say "A= not A", we can mention it, but its actual usage is impossible) But you can't claim that any contradictions exist in all senses. You can't get an existent contradiction in the sense of something being 100% true and 100% false at the same time in the same respects from the same perspective. You can't get A=not A or something not being itself. You can't get anything that actually really violates the law of identity. You can get an equivocation that you fail to spot.