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Because the knot homology theories are TQFTs!

This definition is taken from [[1]]: [![enter image description here][2]][2]1]: enter image description here

Knot homology theories are (1+1)-dimensional TQFTs: links are 1-manifolds, and cobordisms between them are 2-manifolds. [1]: http://www.math.ru.nl/~mueger/TQFT/At.pdf [2]: https://i.sstatic.net/eykvR.png

Because the knot homology theories are TQFTs!

This definition is taken from [[1]]: [![enter image description here][2]][2]

Knot homology theories are (1+1)-dimensional TQFTs: links are 1-manifolds, and cobordisms between them are 2-manifolds. [1]: http://www.math.ru.nl/~mueger/TQFT/At.pdf [2]: https://i.sstatic.net/eykvR.png

Because the knot homology theories are TQFTs!

This definition is taken from [1]: enter image description here

Knot homology theories are (1+1)-dimensional TQFTs: links are 1-manifolds, and cobordisms between them are 2-manifolds.

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Will Rushworth
Will Rushworth
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Because the knot homology theories are TQFTs!

This definition is taken from [[1]]: [![enter image description here][2]][2]

Knot homology theories are (1+1)-dimensional TQFTs: links are 1-manifolds, and cobordisms between them are 2-manifolds. [1]: http://www.math.ru.nl/~mueger/TQFT/At.pdf [2]: https://i.sstatic.net/eykvR.png