> .. 1 plus 1 is not equal to 2. Which leads to contradiction. Therefore, the initial assumption, that Earth is not flat, must be false. [0] [0] https://en.m.

> .. 1 plus 1 is not equal to 2. Which leads to contradiction. Therefore, the initial assumption, that Earth is not flat, must be false. [0] [0] https://en.m.wikipedia.org/wiki/Proof_by_contradiction https://en.m.wikipedia.org/wiki/Proof_by_contradiction