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BP527 Each black filled circle belongs to exactly one large circle outline vs. not so.
(edit; present; nest [left/right]; search; history)
COMMENTS

On the left, circles define a partition of the dots.

CROSSREFS

Adjacent-numbered pages:
BP522 BP523 BP524 BP525 BP526  *  BP528 BP529 BP530 BP531 BP532

KEYWORD

precise, allsorted, traditional

CONCEPT circle (info | search),
exists_one (info | search)

AUTHOR

Aaron David Fairbanks

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