# Category:Previous POTW

This category contains proofs that have been **Proof of the Week** some time during the history of ProofWiki.

Note that in this context, the word **week** is to be interpreted loosely.

## Pages in category "Previous POTW"

The following 83 pages are in this category, out of 83 total.

### A

### B

### C

- Cantor's Theorem
- Cantor-Bernstein-Schröder Theorem
- Cardano's Formula
- Cassini's Identity
- Cauchy Condensation Test
- Cauchy Mean Value Theorem
- Chinese Remainder Theorem/General Result
- Closed Form for Triangular Numbers
- Combination Theorem for Sequences/Real
- Complex Numbers cannot be Totally Ordered
- Congruence of Sum of Digits to Base Less 1
- Conjugacy Class Equation