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## Main Question or Discussion Point

i cannot find a proof anywhere to show that the linking number is always an integer! can someone please point me in the right direction (or give a proof of their own)! thanks.

- Thread starter dubious
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i cannot find a proof anywhere to show that the linking number is always an integer! can someone please point me in the right direction (or give a proof of their own)! thanks.

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Two curves are either crossing or they are not, how can they be anywhere in between?

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