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BP120 All turns are in one direction and rectangular loop exists vs. turns in different directions and no rectangular loop exists.
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CROSSREFS

Adjacent-numbered pages:
BP115 BP116 BP117 BP118 BP119  *  BP121 BP122 BP123 BP124 BP125

KEYWORD

traditional

CONCEPT all (info | search),
turn_orientation (info | search),
tracing_line_or_curve (info | search),
turning_direction (info | search)

AUTHOR

Douglas R. Hofstadter

    page 1

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