### Where did you all learn proofs from?

So, I am finally starting to learn proofs in my MATH 134 class at the UWashington, but it's awfully late compared to some of you. Still though, most math competitions up to the level of the AIME don't use proofs. You don't learn them from school. It's my speculation, but I doubt that most people would check out a book from the library specifically to learn about them. So, where did you gain that knowledge?

## 4 Comments:

Well I dunno . . . I learned 2-column proofs when I was in geometry

But the first time I saw the type've proofs we did in Monty's class was . . . umm . . . Monty's class

Integrated Math 2 here teaches you mind-numbing algebraic proofs. These are a very degenerate life-form as far as real proofs are concerned.

Induction and the like, though? Well... both my parents have degrees in math or science, and have taken it upon themselves to teach me math at assorted times.

www.artofproblemsolving.com

probably 9-10th grade.

yet there is more to learn!

uh... in canada, we didn't do induction or pigeonhole at high school level. All we did - geo+trig proofs. yeah... not like real proofs in monty's class lol

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