The On-Line Encyclopedia of Bongard Problems

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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`

One natural way of matching up the two collections vs. multiple natural ways of matching up the two collections.

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	COMMENTS	`Jago originally designed this as a triptych. EX9655, EX9656, and EX9657 belong in a third category displayed further right of the two categories shown here. The third category is "all possible ways of matching are equally natural". - Aaron David Fairbanks, Apr 18 2022`
	CROSSREFS	`Adjacent-numbered pages: BP1186 BP1187 BP1188 BP1189 BP1190 * BP1192 BP1193 BP1194 BP1195 BP1196`
	KEYWORD	`nice, abstract, creativeexamples, structure, miniworlds, dithering`
	AUTHOR	`Jago Collins`

Short, short, long, short, long vs. not.

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	COMMENTS	`All examples in this Problem are paths of short and long line segments which do not self-intersect. This could be a useful world to use in an abstract binary sequence BP.`
	CROSSREFS	`Adjacent-numbered pages: BP1187 BP1188 BP1189 BP1190 BP1191 * BP1193 BP1194 BP1195 BP1196 BP1197`
	KEYWORD	`nice, notso, arbitrary, traditional`
	WORLD	`[smaller \| same \| bigger]`
	AUTHOR	`Jago Collins`

Color of any region is an equal mix of the colors of the overlapping shapes vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP1197 BP1198 BP1199 BP1200 BP1201 * BP1203 BP1204 BP1205 BP1206 BP1207`
	KEYWORD	`nice, precise, allsorted, notso, color`
	AUTHOR	`Leo Crabbe`

Same transformation applied to circle, triangle, and square vs. different transformations applied.

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	CROSSREFS	`BP839 is about applying opposite transformations to a single object.` `Adjacent-numbered pages: BP1255 BP1256 BP1257 BP1258 BP1259 * BP1261 BP1262 BP1263 BP1264 BP1265`
	KEYWORD	`easy, nice, abstract, arbitrary, anticomputer, left-null, structure, orderedtriplet, traditional, rules`
	CONCEPT	`circle (info \| search),` `analogy (info \| search),` `square (info \| search),` `same (info \| search),` `triangle (info \| search),` `function (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

Square minus circle vs. circle minus square.

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	COMMENTS	`All examples in this Bongard Problem are solid black shapes.`
	CROSSREFS	`BP345 is "Intersection of circle and square vs. union of circle and square."` `Adjacent-numbered pages: BP1267 BP1268 BP1269 BP1270 BP1271 * BP1273 BP1274 BP1275 BP1276 BP1277`
	EXAMPLE	`EX1 is ambiguous because it might be a small circle minus a large square, or a small square minus a large circle.`
	KEYWORD	`easy, nice, precise, dual`
	CONCEPT	`subtraction (info \| search),` `overlap (info \| search)`
	AUTHOR	`Ben`

Reversing the sequence permutes the objects vs. not.

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	COMMENTS	`Equivalently, some permutation of the objects reverses the sequence vs. not.` `Palindromes fit left. Strings of distinct objects repeated any number of times fit left.`
	CROSSREFS	`Adjacent-numbered pages: BP1269 BP1270 BP1271 BP1272 BP1273 * BP1275 BP1276 BP1277 BP1278 BP1279`
	KEYWORD	`nice, precise, allsorted, notso, sequence, miniworlds`
	WORLD	`[smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

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