Comment on Where did the abbreviation "w/" for "with" come from?
Rentlar@lemmy.ca 8 months agoMathematicians didn’t want to write a conclusion paragraph to their proofs to say that that result proves what they wanted to show, so they just put “QED” at the end which is some Latin phrase to the effect.
Then they got too lazy to write that because they do proofs all the time, so they just put a box ∎ that means “so, basically yeah. there you have it.”
Basilisk@mtgzone.com 8 months ago
Q.E.D. is “quod erat demonstrandum”, meaning “thus, it has been demonstrated”.