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Search: concept:mentally_remove_object
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BP151 If the circle closest to the cross is removed, the rest form an equilateral triangle vs. not so.
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CROSSREFS

Adjacent-numbered pages:
BP146 BP147 BP148 BP149 BP150  *  BP152 BP153 BP154 BP155 BP156

KEYWORD

traditional

CONCEPT correspondence (info | search),
length_line_or_curve (info | search),
near_far (info | search),
number (info | search),
mentally_remove_object (info | search),
equilateral_triangle (info | search),
triangle (info | search)

AUTHOR

Douglas R. Hofstadter

    page 1

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