A torus from zero tangles
The birth, the saddle slabs, the death and their successive gluings.
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A genus-one surface
Three saddles and two cusps, with two variants. The cusps occur at successive heights here, and at one height in the report's figure.
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Nine (3,4)-singularities
The nine singularities, in the order of MDTT Figure 3.30.
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Cap–birth–saddle comparison
The four surface movies A, M1, M2 and B, and the 4-truss comparing them over a non-product base.
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A tangle that is not boundary-globular
Two cups exchanging heights as t passes 0, constant in a further direction u.
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