What does 2 + 2 make? • page 8/8 • Off-Topic Discussion • lichess.org

Erhei walked 200 meters, took a break, and then walked another 200 meters. How far did he walk in total?

2+2≡1 mod 3

Yes, but what if we put it in the set of congruences modulo 5?

@Free_Elo_ATM said [^](/forum/redirect/post/6HDNgz1n) > 2+2≡1 mod 3 Yes, but what if we put it in the set of congruences modulo 5?

Firestar540

proof that 2+2 indeed makes 4

my reaction to those who don't believe me

![Screenshot 2026-10-22 14.33.06.png](https://image.lichess1.org/display?fmt=png&h=0&op=resize&path=rV8wrSTl77zb.png&w=864&sig=a485ee0f665e9b6e9b4e28334cf37b33336a916e) ![Screenshot 2026-10-22 14.50.34.png](https://image.lichess1.org/display?op=noop&path=hAE-wXHnSKJ6.png&sig=b9ccedf340cee4617b7c1a4e82457bbae8b29467) proof that 2+2 indeed makes 4 ![Your paragraph text.png](https://image.lichess1.org/display?fmt=png&h=0&op=resize&path=n0tNicYQCTV_.png&w=864&sig=717503c825549dffed79b57c805953e334e1e236) my reaction to those who don't believe me