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BP82 The convex hull of the crosses forms an equilateral triangle vs. the convex hull of the crosses does not form an equilateral triangle.
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REFERENCE

M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 241.

CROSSREFS

Adjacent-numbered pages:
BP77 BP78 BP79 BP80 BP81  *  BP83 BP84 BP85 BP86 BP87

KEYWORD

noisy, notso, finished, traditional, bongard

CONCEPT convex_hull (info | search),
equilateral_triangle (info | search),
triangle (info | search)

WORLD

[smaller | same | bigger]

AUTHOR

Mikhail M. Bongard

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