Question

prove 1+1=2

Answer 1

Put one finger up... then put another finger up..... Count em....
WHAT THE HECK.....
lmfao

Answer 2

same thing as saying prove that 1+1=1 just different theory

Answer 3

How do you define 1 and 2 first, then we can talk about the proof :).

Answer 4

You should give more context. What axiom system are should you base the proof upon? Is it Peanos? Or is a specific modell given, like a set theoretic one?

Answer 5

How to define 1 and 2?

Answer 6

Yes, for example like this:
http://en.wikipedia.org/wiki/Set-theoretic_definition_of_natural_numbers

Answer 7

because if u add 1 and 1 u get the next number 2