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- True Definition of the Real Numbers 1 answer
Non-computables, hyperreals, surreal, and even more obscure numbers exist between even just, e.g., 0 and 1. Does that mean they are all real numbers? Is a number real as long as it is on the number line, even how obscure, specific, unreal tiny it is?
If not, what is and isn't a real number? And does "all numbers on the number line" have a name?