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v3
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Commit
2021-06-21 19:43
2b80d2f6
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feat(geometry/euclidean/sphere): proof of Freek thm 95 - Ptolemy’s Theorem (
#7329
)
Estimated changes
Modified
docs/100.yaml
Modified
src/geometry/euclidean/sphere.lean
added
theorem
euclidean_geometry.mul_dist_add_mul_dist_eq_mul_dist_of_cospherical