Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What is the precise definition of, "Differs in exactly one element"?

  1. Sep 11, 2014 #1
    Do {1,2,3} and {1,2} differ in, or by exactly one element? Or do those two things mean the same thing. Also, what about {1,2,3} and {1,2,4}.
  2. jcsd
  3. Sep 12, 2014 #2
    If you want to be precise use symbols instead of words, but in normal usage:
    {1,2,3} and {1,2} differ by exactly one element
    {1,2,3} and {1,2,4} differ in exactly one element
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook