Does 1+1 always equal 2?

Posted by: Mikal

Inspired by a recent debate

  • Yes

  • No

57% 27 votes
43% 20 votes
  • I never get these questions. Can someone please explain the other side to me?

  • Assuming actual, whole numbers, rather than something stupid like 1.4 +1.8, which leads to a different logical answer, then yes.

  • I feel like this is a trick question...

  • Its kind of like a tautology; we define values such as "1" and "2." The answer of the equation 1 + 1 is, by definition, 2.

    Posted by: MrJosh
  • Because this is an absolute. Core curriculum with an emphasis on math would love for us to believe this but the very notion is dumb.

  • 1+1 is obviously 2 by standard math rules.

    Posted by: Custer
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(Maximum 900 words)
pozessed says2013-09-11T19:56:06.0269522-05:00
1 + 1 will always equal 2 unless the definition of 1 means something else. If 1 + 1 = 3, 1 would actually be 1.5 not 1.
pozessed says2013-09-11T20:02:34.0295550-05:00
1+1 will always equal 2 unless you change the value of what 1 is. 1+1=3 would actually be 1.5+1.5 = 3. @Jzonda, talking specifically about weight yes 1 liter of water plus 1 liter of vinegar would equal 2 liters. Maybe you meant to say a half cup of vinegar does not weight the same as a half cup of water?
fluffybunnypuff says2013-09-26T04:57:39.3625537-05:00
Yes unless the government tells you otherwise. (sarcasim) if gov desided to say it = 3 tomarrow, everyone would have to call it 3 so they didnt mess up their tax forms and so they'll get a good grade.
Jingram994 says2013-09-26T05:05:05.7387031-05:00
Heh... 1984.
themohawkninja says2013-10-19T17:52:57.1095174-05:00
Unrelated "related topics" much?
themohawkninja says2013-10-19T17:54:30.1185060-05:00
In estimation if you truncate the values, 1+1 will still equal 2, but it may not be the most accurate answer.
rammstauffenberg says2013-10-27T17:24:03.6781351-05:00
If there is a mathematical fallacy in the proof or a contradiction. Are you including the possibility of zero in the factor? And is it Euclidian Geometry, calculus, or elementary algebra?
davebozy says2013-11-20T12:25:16.8393952-06:00
I recomend a book called "Gödel, Escher, Bach: An Eternal Golden Braid". If you have two rain drops on your window and you say 1 rain drop plus 1 raindrop = 2 raindrops but you look again and one of the raindrops split now you have 3 raindrops. So 1 + 1 doen't always = 2
davebozy says2013-11-20T12:27:55.8182653-06:00
The question never said does the whole number 1 plus the whole number 1 = the whole number 2.
davebozy says2013-11-20T12:27:58.7198653-06:00
The question never said does the whole number 1 plus the whole number 1 = the whole number 2.
Jingram994 says2013-11-20T22:51:02.9332000-06:00
What else would we assume 1 and 2 equal? Unless otherwise specified, 1 does necessarily equal the whole number 1.
k-chen123 says2014-02-05T19:18:07.8240978-06:00
In programming "1" + "1" will print out 11 as the computer treats the 1 as though it were a letter. Remember algebra, where a + b = ab?
sambob says2014-08-07T17:53:38.8971185-05:00
If I was a political activist I'd say 1+1 can equal whatever it wants and we shouldn't discriminate. But knowing that 1+1 is 2 and cannot be anything else unless 1 is not 1 which means it is already a different answer, I'd say it cannot be whatever it wants.
Sidewalker says2014-08-07T19:19:18.2808960-05:00
In base 2, 1+1=10

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