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For example, what about the statement "2+2=4" or "Humans require oxygen to breathe"? To me, these seem inherently objective...

[jolmg]

> "2+2=4"

  $ ruby -e 'puts(ARGV.first + ARGV.last)' 2 2
  22

Also, if we're using base-3 numbers, it's actually 2+2=11. If we use base-4 numbers, it'd be 2+2=10.

There's also the cases explained here:

http://virgil.azwestern.edu/~dag/lol/TwoPlusTwo.html

> "Humans require oxygen to breathe"

"breathe" is defined as:

> To inhale and exhale air using the lungs.

You can do that without oxygen. You might not live very long, but you can breathe.