OAI/Combinatorics/EuclideanRamsey/SphereTransport.lean

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1 declarations, 0 contain sorry, 0 declared as axioms

  1. theorem OAI.EuclideanRamsey.cospherical_transport line 14

    Source documentation

    A full-affine-span representative transfers its sphere to any congruent configuration. The translated linear isometry preserves the radius exactly; in particular, there is no rescaling of the pairwise distances. No injectivity or positive-dimension hypothesis is needed for this transport lemma.

    theorem cospherical_transport {s D d : ℕ}
        (a : Fin s → Space D) (b : Fin s → Space d)
        (hspan : affineSpan ℝ (Set.range b) = ⊤)
        (hab : Congruent a b)
        (hb : EuclideanGeometry.Cospherical (Set.range b)) :
        EuclideanGeometry.Cospherical (Set.range a) := by
    …

    Mentions: OAI.EuclideanRamsey.Space, OAI.EuclideanRamsey.Congruent