For example: I don’t believe in the axiom of choice nor in the continuum hypothesis.
Not stuff like “math is useless” or “people hate math because it’s not well taught”, those are opinions about math.
I’ll start: exponentiation should be left-associative, which means a^b should mean b×b×…×b } a times.
Matrix multiplication should be the other way around, i.e. not like cascading functions. Oh and function cabbages should also be the other way around :) i prefer to read it not like a manga