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Search: subworld:BP1247
Displaying 1-3 of 3 results found.     page 1
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BP854 Nothing vs. nothing.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP849 BP850 BP851 BP852 BP853  *  BP855 BP856 BP857 BP858 BP859

KEYWORD

left-finite, right-finite, left-full, right-full, finished, experimental, funny

WORLD

nothing [same | bigger]
zoom in left (nothing) | zoom in right (nothing)

AUTHOR

Aaron David Fairbanks

BP1247 No straight path from one side of the panel to the other passes through the grey shape without hitting a black region vs. such a path exists.
(edit; present; nest [left/right]; search; history)
REFERENCE

https://en.wikipedia.org/wiki/Opaque_set

CROSSREFS

Adjacent-numbered pages:
BP1242 BP1243 BP1244 BP1245 BP1246  *  BP1248 BP1249 BP1250 BP1251 BP1252

KEYWORD

precise, allsorted, unwordable, notso

CONCEPT imagined_line_or_curve (info | search)

WORLD

[smaller | same | bigger]
zoom in left

AUTHOR

Leo Crabbe

BP1248 No straight path passes from a white region to a grey one, then to white again (without hitting black) vs. such a path exists.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Any small amount of convexity along the grey border will cause an example to fit right.

Adjacent-numbered pages:
BP1243 BP1244 BP1245 BP1246 BP1247  *  BP1249 BP1250 BP1251 BP1252 BP1253

KEYWORD

precise, allsorted, unwordable, notso, perfect

CONCEPT imagined_line_or_curve (info | search)

WORLD

[smaller | same | bigger]
zoom in left

AUTHOR

Leo Crabbe

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