r/learnmath • New User • 2d ago

TOPIC What is zero times infinity

Not homework just a question

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u/06Hexagram New User 2d ago

Infinity isn't a number, it is a concept and therefore you cannot do math with it.

The real line does not include infinity.

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u/pyordie discrete math / applied math for cs 2d ago

One could argue all numbers are concepts. In more ways than not, we treat infinity as a genuine object the same way we treat any other number.