Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally convincing proof.
Source: Lesson by Scott Kennedy, animation by Karrot Animation
Check out this humorous example of a "mathematical proof". It is obviously just a joke, but it demonstrates how a proof is just a set of logical organized statements that demonstrate the truth of a new statement.