>>12802885Yeah that's what math is like. You can't do algebra without being able to do arithmetic, you can't do calculus without being able to do algebraic manipulations and calculus is everywhere in math.
Really, it's true of the vast majority of science subjects, math is just the worst offender.
It really depends at what point you are and where you're trying to get to. I would say try to get in calculus, basic set theory (some logic wouldn't hurt), basic linear algebra (mainly talking matrix/vector calculations, not anything fancy) and complex numbers as a decent foundation.
