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If we changed the way we count, could 2+2 fail to equal 4? If, for example, we started counting with zero, we might count X X X as 0, 1, 2 X's. Then 2 + 2 would equal X X X X X X, and when we counted the X's, we would count, "zero, one, two, three, four, five." So 2+2=5.
So, does this example show that 2 + 2 doesn't necessarily equal 4? Or, would we have to say that we were speaking another language when we truthfully say that 2+2=5?

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