The On-Line Encyclopedia of Bongard Problems

BP1129

An oval is sorted left; shapes are sorted left when they can be built out of others sorted left by A) joining side by side (at a point) or B) joining one on top of the other (joining one's entire bottom edge to the other's entire top edge).

(edit; present; nest [left/right]; search; history)

	COMMENTS	`This was an unintended solution for BP1130.` `In category theory lingo, left examples are built by repeated horizontal composition and vertical composition. (Making horizontal lines as 0-ary vertical compositions is here forbidden.)`
	CROSSREFS	`Anything fitting right in BP1130 fits right here.` `Adjacent-numbered pages: BP1124 BP1125 BP1126 BP1127 BP1128 * BP1130 BP1131 BP1132 BP1133 BP1134`
	KEYWORD	`hard, less, convoluted, solved, inductivedefinition`
	CONCEPT	`or (info \| search)`
	WORLD	`[smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

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