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Lax56.MainTheorem

Large finite point sets have four collinear points or a visible six-clique

concepts/Lax56/MainTheorem.lean · lax-56

proven

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    Proven claimDefinitionThis conceptRelated conceptA → B: B builds on A

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    Theorem

    Every finite set of at least 10(2450)10^(2^450) points in the real plane contains four distinct collinear points or six distinct points that pairwise see one another with respect to the whole set.

    Lean source view on GitHub

    1import Lax56.Geometry
    2
    3/-!
    4---
    5title: Large finite point sets have four collinear points or a visible six-clique
    6type: theorem
    7---
    8Every finite set of at least `10^(2^450)` points in the real plane contains
    9four distinct collinear points or six distinct points that pairwise see one
    10another with respect to the whole set.
    11-/
    12
    13namespace Lax56.MainTheorem
    14
    15open Lax56.Geometry
    16
    17axiom large_point_set_four_collinear_or_visible_six
    18 (P : Finset Point) (hP : 10 ^ (2 ^ 450) ≤ P.card) :
    19 HasFourCollinear P ∨ HasVisibleClique P 6
    20
    21end Lax56.MainTheorem
    22
    Show Proof

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