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LeanPool.ClassificationOfSurfaces.CanonicalCoordinates

Carrier coordinates for canonical normal-form words #

This file computes the closed-disk boundary coordinates of every canonical word position. It reconciles the canonical positive boundary-block ordering with the trusted Eval relations' negative angles using Fin.rev and integral periodicity. The resulting theorems send each of the five canonical pairing families into the corresponding trusted equivalence closure.

The point on occurrence i of the canonical orientable one-face presentation.

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    Reversing a finite index converts its real value to n - j - 1.

    The point on occurrence i of the canonical nonorientable one-face presentation.

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