2=1
Moderators: gmalivuk, Moderators General, Prelates
2=1
Maybe some of you have seen this before, but I thought it was pretty cool, at least until you know what's wrong with it...
a = b (ex. a=1, b=1)
a+a = a+b (adding a to both sides)
2a = a+b (substituting a+a for 2a)
2a2b = a+b2b (subtracting 2b from both sides)
2 (ab) = a+b2b (substituting 2a2b for 2 ab)
2(ab) = ab(substituting b2b for b)
2=1(divide both sides by ab)
Anyone see it?
a = b (ex. a=1, b=1)
a+a = a+b (adding a to both sides)
2a = a+b (substituting a+a for 2a)
2a2b = a+b2b (subtracting 2b from both sides)
2 (ab) = a+b2b (substituting 2a2b for 2 ab)
2(ab) = ab(substituting b2b for b)
2=1(divide both sides by ab)
Anyone see it?
Last edited by Zaraden on Fri Nov 02, 2007 5:02 am UTC, edited 1 time in total.
Let epsilon be less than zero...
Re: 2=1
This one's pretty hard to search for because
but I'm fairly sure it's been done before. The mistake is of course thatYou must specify at least one word to search for. Each word must consist of at least 3 characters
Spoiler:
This is a placeholder until I think of something more creative to put here.

 Posts: 5
 Joined: Fri Oct 26, 2007 8:06 pm UTC
Re: 2=1
*sigh* I'm sorry, but the
Spoiler:
 Mathmagic
 It's not as cool as that Criss Angel stuff.
 Posts: 2926
 Joined: Thu Nov 30, 2006 12:48 am UTC
 Location: In ur fora posting in teh threads
Re: 2=1
viewtopic.php?f=17&t=8119
It's weird... every time someone makes this topic (on false proofs), they always start with the 2=1 "proof".
EDIT: To clarify  this topic has already been done. There is a thread on it with a good amount of replies, on the second page. I have linked to said topic. Plz lock nao.
It's weird... every time someone makes this topic (on false proofs), they always start with the 2=1 "proof".
EDIT: To clarify  this topic has already been done. There is a thread on it with a good amount of replies, on the second page. I have linked to said topic. Plz lock nao.
Last edited by Mathmagic on Fri Nov 02, 2007 3:44 pm UTC, edited 1 time in total.
Axman: That, and have you played DX 10 games? It's like having your corneas swabbed with clits made out of morphine.
Pathway: cocks cocks cocks
Pathway: cocks cocks cocks
 Mathmagic
 It's not as cool as that Criss Angel stuff.
 Posts: 2926
 Joined: Thu Nov 30, 2006 12:48 am UTC
 Location: In ur fora posting in teh threads
Re: 2=1
Zaraden wrote:Crap....
Sorry guys, I hate to have reposted it.... I did try searching, but yeah it requires three characters.
No worries! At least you made the effort.
Axman: That, and have you played DX 10 games? It's like having your corneas swabbed with clits made out of morphine.
Pathway: cocks cocks cocks
Pathway: cocks cocks cocks
 3.14159265...
 Irrational (?)
 Posts: 2413
 Joined: Thu Jan 18, 2007 12:05 am UTC
 Location: Ajax, Canada
Re: 2=1
Some in another forum once showed the following paradox:
0.9999..... = 1
0.9999..... = 1
"The best times in life are the ones when you can genuinely add a "Bwa" to your "ha"" Chris Hastings
 Torn Apart By Dingos
 Posts: 817
 Joined: Thu Aug 03, 2006 2:27 am UTC
Re: 2=1
3.14159265... wrote:Some in another forum once showed the following paradox:
0.9999..... = 1
However, 0.124 999 999 999 999 999 999 999 999 999 999 999 999 999... < 0.125. See for yourself.
 MartianInvader
 Posts: 804
 Joined: Sat Oct 27, 2007 5:51 pm UTC
Re: 2=1
Not sure if it's been done before so I'll just tack it onto this thread:
16  36 = 25  45(Both are 20)
16  36 + 81/4 = 25  45 + 81/4(add 81/4 to each side)
(4  9/2)^2 = (5  9/2)^2(simplify the x^2 + 2xy + y^2 expressions)
4  9/2 = 5  9/2 (square root both sides)
=> 4=5
The trick isn't too tough to see, but I still like this one better than the dividebyzero proofs.
16  36 = 25  45(Both are 20)
16  36 + 81/4 = 25  45 + 81/4(add 81/4 to each side)
(4  9/2)^2 = (5  9/2)^2(simplify the x^2 + 2xy + y^2 expressions)
4  9/2 = 5  9/2 (square root both sides)
=> 4=5
The trick isn't too tough to see, but I still like this one better than the dividebyzero proofs.
Let's have a fervent argument, mostly over semantics, where we all claim the burden of proof is on the other side!
 Mathmagic
 It's not as cool as that Criss Angel stuff.
 Posts: 2926
 Joined: Thu Nov 30, 2006 12:48 am UTC
 Location: In ur fora posting in teh threads
Re: 2=1
MartianInvader wrote:Not sure if it's been done before so I'll just tack it onto this thread:
16  36 = 25  45(Both are 20)
16  36 + 81/4 = 25  45 + 81/4(add 81/4 to each side)
(4  9/2)^2 = (5  9/2)^2(simplify the x^2 + 2xy + y^2 expressions)
4  9/2 = 5  9/2 (square root both sides)
=> 4=5
The trick isn't too tough to see, but I still like this one better than the dividebyzero proofs.
Guys... did you not see the link I posted, directing you to a thread that is *filled* with these "proofs", and I'm quite positive that this one has been posted in there too.
Are there ever any mods that come into this here maths forum?
Axman: That, and have you played DX 10 games? It's like having your corneas swabbed with clits made out of morphine.
Pathway: cocks cocks cocks
Pathway: cocks cocks cocks
Re: 2=1
mathmagic wrote:Guys... did you not see the link I posted, directing you to a thread that is *filled* with these "proofs", and I'm quite positive that this one has been posted in there too.
You're correct, but it's hardly easy to search for. The post in question used the same technique to show 3 = pi, which you're unlikely to spot if you're searching for "4 = 5" or the like.
Who is online
Users browsing this forum: No registered users and 10 guests