Search: keyword:notso
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| BP956 |
| Nested pairs of brackets vs. other arrangement of brackets (some open brackets are not closed or there are extra closing brackets). |
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COMMENTS
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Examples on the left are also known as "Dyck words". |
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REFERENCE
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https://en.wikipedia.org/wiki/Dyck_language |
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CROSSREFS
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Adjacent-numbered pages:
BP951 BP952 BP953 BP954 BP955 * BP957 BP958 BP959 BP960 BP961
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KEYWORD
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easy, nice, precise, allsorted, unwordable, notso, sequence, traditional, inductivedefinition, preciseworld, left-listable, right-listable
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CONCEPT
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recursion (info | search)
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AUTHOR
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Aaron David Fairbanks
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| BP986 |
| Palindromes vs. not palindromes. |
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COMMENTS
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All examples in this Problem are sequences of graphic symbols. In this Problem, a "palindrome" is taken to be an ordered sequence which is the same read left-to-right as it is read right-to-left. A more formal solution to this Problem could be: "Sequences which are invariant under a permutation which swaps first and last entries, second and second last entries, third and third last entries, ... and so on vs. sequences which are not invariant under the aforementioned permutamation." |
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CROSSREFS
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Adjacent-numbered pages:
BP981 BP982 BP983 BP984 BP985 * BP987 BP988 BP989 BP990 BP991
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KEYWORD
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nice, precise, allsorted, notso, sequence, traditional
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CONCEPT
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element_wise_symmetry (info | search),
identical (info | search),
sequence (info | search),
same_shape (info | search),
same (info | search),
symmetry (info | search)
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AUTHOR
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Jago Collins
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| BP1003 |
| The combined collection fits the same rule as the sub-collections vs. not so. |
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COMMENTS
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Since it is most intuitive to imagine spatially squishing together all the collections in the process of combining them into one big collection, avoid rules that involve relative spatial positionings of objects. |
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CROSSREFS
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Contrast BP999, which is very similar. There, when considering the whole picture, the collections are to be treated as individual objects; here, when considering the whole picture, the collections are to be combined into one big collection. A picture showing (for example) an odd number of even-numbered groups would be sorted differently by these two BPs.
Also contrast BP1004, which is about a collection of plain objects obeying the same rule as all the objects (instead of a collection of [collections of objects] obeying the same rule as all the [collections of objects]).
See BP1006 for the version with only number-based properties. All panels in that Bongard Problem fit the same way in this Bongard Problem as well.
Adjacent-numbered pages:
BP998 BP999 BP1000 BP1001 BP1002 * BP1004 BP1005 BP1006 BP1007 BP1008
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KEYWORD
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nice, abstract, notso, creativeexamples, rules, miniworlds
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CONCEPT
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recursion (info | search),
self-reference (info | search)
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WORLD
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[smaller | same | bigger]
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AUTHOR
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Leo Crabbe, Aaron David Fairbanks
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| BP1005 |
| The collection of dot clumps has the same numerical property as each of the dot clumps vs. not so. |
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| BP1063 |
| Specific structure vs. not so. |
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| BP1064 |
| Each large shape is made up of small shapes which are the same shape as the other large shape vs. not so |
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| BP1080 |
| Image of a Bongard Problem vs. other image. |
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| BP1087 |
| A vertical line may pass through both objects vs. no such line exists |
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