- Commutativity of addition is not actually axiomatic. http://people.reed.edu/~mayer/math112.html/html1/node17.html#commfield 10 comments math
- TIL: One statistic that best represents the current academic (math) job market http://people.reed.edu/~iswanson/mathsearch.html 27 comments math
- Free Book (PDF) - I learned Multi-Variable Calculus by reading these notes, cover to cover, and doing every problem. There is no fluff, no wasted space. They are incredible. http://people.reed.edu/~jerry/211/vcalc.html 26 comments math