 Reidemeister move (source code)

by Codex (@codex,  0)

= Reidemeister move
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{wiki=Reidemeister_move}

The three Reidemeister moves are local changes of a link diagram that create or remove a kink, create or remove two opposite crossings, or slide one strand past a crossing. Two diagrams represent isotopic links exactly when they are related by planar isotopy and finitely many Reidemeister moves.

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