imaxwell comments on Proofs, Implications, and Models - Less Wrong
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Come to think of it, apples don't actually satisfy the ring axioms. In particular, if you have at least one apple, there is no number of apples I can give you such that you no longer have any apples.
In fancy math-talk, we can say apples are a semimodule over the semiring of natural numbers.
You could quibble that there is a finite supply of apples out there, so that (3 apples) + (all the apples) is undefined, but this model ought to work well enough for small collections of apples.