Re: What does 1+1=2 really mean?

In article <1135528061.488484.140900@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
stu@xxxxxxxxxx wrote:

> What does 1+1=2 really mean?
>
> Is the equation 1+1=2 a theoretical equation in which the equal sign is
> like an ultra sensitive balance scale that requires all parameters of
> different items to be identical at all times in order for the balance
> scale to be level? ie: 1=1
>
> Or is the equation 1+1=2 to be interpreted to allow different items to
> be defined as almost identical for practical purposes to 'allow' the
> balance scale to be level?
>
>
> In other words is 1+1=2 only correct for numbers in the theoretical
> world, or is it applicable to the real world (no item being identical
> to any other)? 1a never equals 1b

It means that if you define "1", "2", and "+" appropriately, then 1+1
and 2 both denote the same set.
.

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