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Produce a 5 for me?But having 5 horses is not an abstraction. Having zero horses or -5 horses is an abstract idea. Absolute zero is an abstract idea. Infinity is an abstract idea. God is an abstract idea.
Infinity is not the next number. Infinity doesn't represent a number. Infinity is an absolutely meaningless idea. Whatever you think of it is not enough. Likewise, absolute zero is meaningless. The fact that you exist to contemplate zero is proof that zero does not exist.
The problem is that people are pointing at quantities and saying that the concept and symbol that represents that number exists because a physical quantity exists that the symbol can represent. Mathematics is fundamentally abstract.
If anyone disagrees then the challenge is to produce a number 5 that exists in reality.
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