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BP17 Shape with a reflex corner vs. shape without a reflex corner.
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COMMENTS

All examples in this Bongard Problem are outlines of shapes.

REFERENCE

M. M. Bongard, Pattern Recognition, Spartan Books, 1970, p. 219.

CROSSREFS

Adjacent-numbered pages:
BP12 BP13 BP14 BP15 BP16  *  BP18 BP19 BP20 BP21 BP22

KEYWORD

finished, traditional, bongard

CONCEPT acute (info | search),
angle (info | search),
indentation (info | search)

WORLD

shape_outline [smaller | same | bigger]

AUTHOR

Mikhail M. Bongard

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