“!” in math is the factorial symbol, and 2 factorial is just 2 times 1, which is 2.
Comment on Also P!=NP
BuboScandiacus@mander.xyz 5 months ago
[deleted]
yozul@beehaw.org 5 months ago
I_am_10_squirrels@beehaw.org 4 months ago
Whereas != is commonly used in programming as “not equal to”.
So the mathematician see two factorial equals two, which is true.
The programmer sees two is not equal to two, which is not true.
SwordInStone@lemmy.world 4 months ago
factorial
mrsemi@lemmy.world 5 months ago
BuboScandiacus@mander.xyz 5 months ago
Damn, I’m so dumb it hurts
sazey@lemmy.world 5 months ago
me too but you were brave enough to ask
user224@lemmy.sdf.org 5 months ago
2 != 2
But what if it’s true? Perhaps the 2 on the left is integer and the right one is character.
lemmyvore@feddit.nl 5 months ago
Or it’s a language where each number is a different instance, and
!=
compares addresses.