“!” 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 10 months ago
[deleted]
yozul@beehaw.org 10 months ago
I_am_10_squirrels@beehaw.org 10 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 9 months ago
factorial
mrsemi@lemmy.world 10 months ago
BuboScandiacus@mander.xyz 10 months ago
Damn, I’m so dumb it hurts
sazey@lemmy.world 10 months ago
me too but you were brave enough to ask
user224@lemmy.sdf.org 10 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 10 months ago
Or it’s a language where each number is a different instance, and
!=
compares addresses.