login
Hints
(Greetings from The On-Line Encyclopedia of Bongard Problems!)
Search: keyword:unorderedpair
Displaying 21-24 of 24 results found. ( prev )     page 1 2 3
     Sort: id      Format: long      Filter: (all | no meta | meta)      Mode: (words | no words)
BP1110 The process that turns one object into the other is the same both ways vs. the process changes depending on which object is chosen as the starting point.
?
(edit; present; nest [left/right]; search; history)
REFERENCE

https://en.wikipedia.org/wiki/Duality_(mathematics)

https://en.wikipedia.org/wiki/Involution_(mathematics)

CROSSREFS

This is a special case of BP841 and a generalisation of BP822.

Adjacent-numbered pages:
BP1105 BP1106 BP1107 BP1108 BP1109  *  BP1111 BP1112 BP1113 BP1114 BP1115

KEYWORD

nice, abstract, math, anticomputer, creativeexamples, left-narrow, unorderedpair, rules, miniworlds, dithering

CONCEPT function (info | search)

AUTHOR

Leo Crabbe

BP1114 Fractals contain one another vs. only one contains the other.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1109 BP1110 BP1111 BP1112 BP1113  *  BP1115 BP1116 BP1117 BP1118 BP1119

KEYWORD

perfect, infinitedetail, unorderedpair

CONCEPT fractal (info | search),
recursion (info | search),
self-reference (info | search)

AUTHOR

Aaron David Fairbanks

BP1115 Fractals tile one another vs. not so (fractals are rather tiled by some combination of one another and themselves).
(edit; present; nest [left/right]; search; history)
COMMENTS

Rotations and reflections avoided in all examples for simplicity.

CROSSREFS

Adjacent-numbered pages:
BP1110 BP1111 BP1112 BP1113 BP1114  *  BP1116 BP1117 BP1118 BP1119 BP1120

KEYWORD

perfect, infinitedetail, unorderedpair

CONCEPT fractal (info | search),
recursion (info | search),
self-reference (info | search)

AUTHOR

Aaron David Fairbanks

BP1131 One shape can be totally obscured by the other vs. neither shape can be obscured.
(edit; present; nest [left/right]; search; history)
COMMENTS

Rotation of shapes is not required for any left-hand panels, but it should not change any example's sorting if it is considered.

CROSSREFS

Adjacent-numbered pages:
BP1126 BP1127 BP1128 BP1129 BP1130  *  BP1132 BP1133 BP1134 BP1135 BP1136

KEYWORD

nice, precise, allsorted, pixelperfect, unorderedpair

CONCEPT overlap (info | search)

WORLD

2_shapes [smaller | same | bigger]

AUTHOR

Leo Crabbe

( prev )     page 1 2 3

Welcome | Solve | Browse | Lookup | Recent | Links | Register | Contact
Contribute | Keywords | Concepts | Worlds | Ambiguities | Transformations | Invalid Problems | Style Guide | Goals | Glossary