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BP810 Figures can be transformed into one another by smooth stretching (intersection points stay constant; paths connecting those points remain), while remaining within the 2d box vs. movement out of the plane required.
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CROSSREFS

All examples here fit left in BP809, a version where the figures are allowed to pass through themselves while being deformed.

Adjacent-numbered pages:
BP805 BP806 BP807 BP808 BP809  *  BP811 BP812 BP813 BP814 BP815

KEYWORD

nice, math, unorderedpair, traditional

CONCEPT topological_transformation (info | search)

WORLD

two_homeomorphic_figures_made_of_curves [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

    page 1

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