What I meant to say - and you could never have figured it out - was:
"It (evolution) is a theory NOT a theorem."
You ask me if English is my first language. No it is not. Actually my first language is Greek (modern although I can read classical Greek as well). Second is English, third is Italian, and fourth is Japanese (not as good as the first two). Also studied 4 years of Latin in HS.
A theory in science is a much more substantial thing than a theory in the vernacular. 'Theory' in the scientific sense does not imply any element of doubt; thus, we have the 'theory of universal gravitation', and the 'atomic theory', both of which are most certainly true.