Exactly what is “Truth”?

[Qfwfq]

Originally Posted by lawcat

We can not define S in terms of M. S just is as a fundamental element.

I did not define it, I chose Susan as a new symbol and that relation just means Mary is the neutral element of the operator.

Well, I can see you aren't a modern mathematician, I give up. Mathematical postulates don't care about evidence nor need to be self evident.

[lawcat]

Originally Posted by Qfwfq

I did not define it, I chose Susan as a new symbol and that relation just means Mary is the neutral element of the operator.

I meant to say there, susan is fundamental if M= DsS stands, or Mary is fundamental if S=MsS stands.

Originally Posted by Qfwfq

Well, I can see you aren't a modern mathematician, I give up.

Thank you for giving me more credit than I gave myself. I am not any kind of mathematician.

Originally Posted by Qfwfq

Mathematical postulates don't care about evidence nor need to be self evident.

Sure, if you understand a postulate to be a definition or a fundamental assumption itself.