The equation of choice among math paradoxers and recreational mathematicians, who unspokenly derive much satisfaction in exposing students’ fallacious or illogical reasoning that leads to the contradictory result.
Be it due to division by zero or squaring (or square rooting) both sides of an equation, few students wouldn’t want to know why “1 = 2” is logically plausible.
by Fasters May 03, 2022
The person before made a mistake in their proof.
1. x = y
2. xy = y^2
3. xy - x^2 = y^2 - x^2
4. x(y - x) = (y + x)(y - x)
So far so good.
4.5. x = (y + x)(y - x)/(y - x) is what they did to get to step 5, which says:
5. x = y + x
This is wrong though. since x = y, y -x = 0, and so you can't divide by y - x.
1. x = y
2. xy = y^2
3. xy - x^2 = y^2 - x^2
4. x(y - x) = (y + x)(y - x)
So far so good.
4.5. x = (y + x)(y - x)/(y - x) is what they did to get to step 5, which says:
5. x = y + x
This is wrong though. since x = y, y -x = 0, and so you can't divide by y - x.
by mathisfun March 17, 2008
1. x = y
2. xy = y^2
3. xy - x^2 = y^2 - x^2
4. x(y - x) = (y + x)(y - x)
5. x = y + x
6. x = x + x
7. x = 2x
8. 1 = 2
QED
2. xy = y^2
3. xy - x^2 = y^2 - x^2
4. x(y - x) = (y + x)(y - x)
5. x = y + x
6. x = x + x
7. x = 2x
8. 1 = 2
QED
As proven, 1 = 2, thus 0 = 1, etc. And so for any number i, there is an equivalent j that is not equal to i.
This is further explained in the Identity Theft Theorem.
This is further explained in the Identity Theft Theorem.
by SAH aka the GSH October 17, 2006
Used when checking a microphone for proper function. Can also be used as a enduring greeting for Dubbstep.
"Mic Check 1 2 1 2"
"Dubbstep 1 2 1 2"
"Dubbstep 1 2 1 2"
by TWOHANDS March 15, 2015
by Ticketyboo's mate potsy August 23, 2015
by Dugie May 11, 2005
People that are saying in chats are just trying to tell you that they only have a half brain cell left.
Person 1: Hey, wanna play something?
Person 2: (1/2)
Person1: I'm very sorry to hear that my friend.
Person 2: (1/2)
Person1: I'm very sorry to hear that my friend.
by Cypoos February 16, 2022