The On-Line Encyclopedia of Bongard Problems

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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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	CROSSREFS	`This is a version of BP999 with only numbers.` `Contrast BP1006, which is very similar.` `Adjacent-numbered pages: BP1000 BP1001 BP1002 BP1003 BP1004 * BP1006 BP1007 BP1008 BP1009 BP1010`
	KEYWORD	`nice, notso, hardsort, left-narrow, rules`
	CONCEPT	`recursion (info \| search),` `self-reference (info \| search)`
	WORLD	`[smaller \| same \| bigger] zoom in left \| zoom in right`
	AUTHOR	`Aaron David Fairbanks`

BP1006

The sum of all dot clumps has the same numerical property as each of the dot clumps vs. not so.

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	CROSSREFS	`This is a version of BP1003 with only numbers.` `Contrast BP1005, which is very similar.` `Adjacent-numbered pages: BP1001 BP1002 BP1003 BP1004 BP1005 * BP1007 BP1008 BP1009 BP1010 BP1011`
	KEYWORD	`nice, hardsort, left-narrow, rules`
	CONCEPT	`recursion (info \| search),` `self-reference (info \| search)`
	WORLD	`[smaller \| same \| bigger] zoom in left \| zoom in right`
	AUTHOR	`Leo Crabbe, Aaron David Fairbanks`

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.

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	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`

BP1127

There is no rule for how the objects in a cluster interrelate vs. there is.

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	COMMENTS	`Other ways of phrasing this:` `"Local" vs. "global" properties of collections: to check a collection satisfies a "local" property, it is only necessary to check each individual thing in it satisfies some property.` `The rule all collections satisfy is just "every object is a ___" vs. the rule is something more.`
	CROSSREFS	`Adjacent-numbered pages: BP1122 BP1123 BP1124 BP1125 BP1126 * BP1128 BP1129 BP1130 BP1131 BP1132`
	KEYWORD	`abstract, creativeexamples, left-unknowable, rules, miniworlds`
	CONCEPT	`local_global (info \| search)`
	WORLD	`[smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1153

Valid multi-sided Bongard Problems vs. invalid multi-sided Bongard Problems.

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	COMMENTS	`This is a generalisation of Bongard Problems that allows them to have any number of sides. There is a sense in which this problem is about valid vs. invalid ways of partitioning a set of examples into equivalence classes.`
	CROSSREFS	`https://en.wikipedia.org/wiki/Equivalence_class` `Adjacent-numbered pages: BP1148 BP1149 BP1150 BP1151 BP1152 * BP1154 BP1155 BP1156 BP1157 BP1158`
	KEYWORD	`abstract, teach, meta (see left/right), miniproblems, infodense, structure, rules, miniworlds`
	WORLD	`zoom in left`
	AUTHOR	`Leo Crabbe`

BP1155

Shapes are sorted according to a simple rule that uniquely determines where everything goes vs. shapes are sorted according to some other rule (or lack thereof).

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	CROSSREFS	`Adjacent-numbered pages: BP1150 BP1151 BP1152 BP1153 BP1154 * BP1156 BP1157 BP1158 BP1159 BP1160`
	KEYWORD	`abstract, unwordable, creativeexamples, right-unknowable, traditional, finishedexamples, rules`
	AUTHOR	`Leo Crabbe`

BP1157

The order in which the objects in the top half are combined to make the object in the lower half matters vs. not so.

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	COMMENTS	`Operations depicted in right-sorted examples are called "commutative".` `"Order matters" here means that if the objects in the top half were to switch places, the output would look different.`
	REFERENCE	`https://en.wikipedia.org/wiki/Commutative_property`
	CROSSREFS	`Adjacent-numbered pages: BP1152 BP1153 BP1154 BP1155 BP1156 * BP1158 BP1159 BP1160 BP1161 BP1162`
	KEYWORD	`nice, abstract, unwordable, notso, structure, rules, miniworlds`
	CONCEPT	`function (info \| search)`
	AUTHOR	`Leo Crabbe`

BP1257

The rule is about squares having a certain relationship with their neighbors vs. it is not.

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	COMMENTS	`"Local vs. global."` `For clarity, rules involving diagonal neighbors or squares more than one step away are never used.` `The similar solution "Each square can be deduced from its neighbors vs. not so" does not quite work; for example EX8114 would then not fit left. See also BP1258 ("Each square can be deduced from the rest vs. not so").`
	CROSSREFS	`Adjacent-numbered pages: BP1252 BP1253 BP1254 BP1255 BP1256 * BP1258 BP1259 BP1260 BP1261 BP1262`
	KEYWORD	`structure, rules, grid, miniworlds`
	CONCEPT	`local_global (info \| search)`
	WORLD	`grid_of_images_with_rule [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1258

It is possible to deduce the contents of any square from the rest vs. it is not.

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	CROSSREFS	`BP979 is very similar: whether a particular square can be deduced from the rest.` `Adjacent-numbered pages: BP1253 BP1254 BP1255 BP1256 BP1257 * BP1259 BP1260 BP1261 BP1262 BP1263`
	KEYWORD	`notso, rules, grid, miniworlds`
	CONCEPT	`convey_enough_information (info \| search),` `choice (info \| search)`
	WORLD	`grid_of_images_with_rule [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1259

Rule is the same for rows as it is for columns vs. not

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	CROSSREFS	`All examples on the left are chosen so that rotating or flipping the grid in any way would result in a grid satisfying the same rule.` `Adjacent-numbered pages: BP1254 BP1255 BP1256 BP1257 BP1258 * BP1260 BP1261 BP1262 BP1263 BP1264`
	KEYWORD	`notso, rules, grid, miniworlds`
	WORLD	`grid_of_images_with_rule [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

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