The On-Line Encyclopedia of Bongard Problems

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Objects below match their "symbols" above, according to one "code" versus objects below match their "symbols" above, according to another "code."

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	COMMENTS	`Circle: VV; square: VΛ; triangle: ΛΛ ; blank: ΛV vs. circle: ΛΛ; square: ΛV; triangle: VV; blank: VΛ.`
	CROSSREFS	`Adjacent-numbered pages: BP116 BP117 BP118 BP119 BP120 * BP122 BP123 BP124 BP125 BP126`
	KEYWORD	`arbitrary, consistentsymbols, traditional`
	CONCEPT	`absence_as_presence (info \| search),` `correspondence (info \| search),` `sides_of_line (info \| search),` `triangle (info \| search)`
	AUTHOR	`Douglas R. Hofstadter`

If the circle closest to the cross is removed, the rest form an equilateral triangle vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP146 BP147 BP148 BP149 BP150 * BP152 BP153 BP154 BP155 BP156`
	KEYWORD	`traditional`
	CONCEPT	`correspondence (info \| search),` `length_line_or_curve (info \| search),` `near_far (info \| search),` `number (info \| search),` `mentally_remove_object (info \| search),` `equilateral_triangle (info \| search),` `triangle (info \| search)`
	AUTHOR	`Douglas R. Hofstadter`

Line joins large and small square vs. line joins the two middle-sized squares.

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	CROSSREFS	`Adjacent-numbered pages: BP290 BP291 BP292 BP293 BP294 * BP296 BP297 BP298 BP299 BP300`
	KEYWORD	`traditional`
	CONCEPT	`correspondence (info \| search),` `size (info \| search)`
	AUTHOR	`"Lewis"`

Identical pairs of symbols are always on opposite sides of the cube (when assembled) vs. some identical symbols are next to each other on the cube.

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	CROSSREFS	`Adjacent-numbered pages: BP1264 BP1265 BP1266 BP1267 BP1268 *`
	KEYWORD	`left-finite, right-finite, finishedexamples, preciseworld`
	CONCEPT	`cube (info \| search),` `correspondence (info \| search),` `3d_net (info \| search),` `3d_solid (info \| search)`
	AUTHOR	`Leo Crabbe`

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