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mantap
on July 28, 2020
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How did anyone do math in Roman numerals? (2017)
If you can debate whether or not zero is a number then you haven't invented it.
If zero might not be a number then you can't state that 0 * n = 0 and 0 + n = n and n - n = 0, etc
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If zero might not be a number then you can't state that 0 * n = 0 and 0 + n = n and n - n = 0, etc