Title 
1 plus 1 = 2

The square root of 2 isn't rational

Infinitely many prime numbers

Fundamental theorem of calculus

Prime decomposition

Metric spaces induce a topology

A convergent sequence of integers is eventually constant

Continuous positive functions on metric spaces

Axioms

A nonzero converging infinite sum has terms converging to 1

Integer multiplication is strictly increasing

Wave equation in two dimensions
