The On-Line Encyclopedia of Bongard Problems

Conic section (plot of solution to conic equation) vs. not so.

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	CROSSREFS	`Adjacent-numbered pages: BP818 BP819 BP820 BP821 BP822 * BP824 BP825 BP826 BP827 BP828`
	KEYWORD	`notso, math, left-couldbe`
	AUTHOR	`Aaron David Fairbanks`

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