(November 18, 2016 at 7:31 pm)Alasdair Ham Wrote: We can be certain of the law of identity and self-identity. Self-identity includes both our own thoughts and all our experiences and qualia. We can be certain of A=A and we can be certain of the phenomenal world. A=A applies to all possible worlds.
Not sure what you're claiming here, though, if anything. Are you perhaps saying that identity is commensurate to... what, exactly?