The On-Line Encyclopedia of Bongard Problems

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Meta Bongard Problem in a chain of Problems containing other Problems that eventually loops back to itself vs. this cannot happen.

BP503	BP509	BP510	BP517	BP518	BP519
BP537	BP539	BP541	BP542	BP544	BP546
BP547	BP687	BP691	BP794	BP1000	BP1007
BP1073	BP1074

BP947

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	COMMENTS	`Left examples have the keyword "feedback" on the OEBP.`
	CROSSREFS	`"Feedback" implies not wellfounded.` `Left-it" or right-it implies "feedback".` `Adjacent-numbered pages: BP1069 BP1070 BP1071 BP1072 BP1073 * BP1075 BP1076 BP1077 BP1078 BP1079`
	KEYWORD	`arbitrary, meta (see left/right), links, keyword, left-self, metameta, left-it, feedback, experimental`
	CONCEPT	`recursion (info \| search),` `self-reference (info \| search)`
	WORLD	`linksbp [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1075

Bongard Problem is the beginning of a chain of meta Bongard Problems containing meta Bongard Problems on the left side that eventually ends in BP1 vs. not so.

BP1

BP1075

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	COMMENTS	`This is an example of a meta Bongard Problem that sorts itself left, and would still sort itself left after the sides in the title were switched.` `That is, this BP is tagged the keyword left-self and so would its flipped version be.`
	CROSSREFS	`See also the keyword feedback for chains of meta Bongard Problems that eventually form loops.` `Adjacent-numbered pages: BP1070 BP1071 BP1072 BP1073 BP1074 * BP1076 BP1077 BP1078 BP1079 BP1080`
	KEYWORD	`notso, arbitrary, meta (see left/right), links, left-self, experimental`
	CONCEPT	`recursion (info \| search)`
	AUTHOR	`Aaron David Fairbanks`

BP1076

Meta Bongard Problems sorting BP1 left vs. meta Bongard Problems sorting BP1 right.

BP501	BP503	BP508	BP509	BP513	BP515
BP541	BP542	BP544	BP546	BP567	BP573
BP627	BP634	BP798	BP883	BP913	BP947
BP1075

	BP504	BP507	BP510	BP522	BP537	BP902
	BP963	BP1113

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

	CROSSREFS	`Adjacent-numbered pages: BP1071 BP1072 BP1073 BP1074 BP1075 * BP1077 BP1078 BP1079 BP1080 BP1081`
	KEYWORD	`meta (see left/right), links, metameta, testexample`
	WORLD	`linksbp [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1078

Bongard Problem with solution relating to concept: semidecidable vs. Bongard Problem unrelated to this concept.

BP1079

BP1081

BP1124

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	CROSSREFS	`Adjacent-numbered pages: BP1073 BP1074 BP1075 BP1076 BP1077 * BP1079 BP1080 BP1081 BP1082 BP1083`
	KEYWORD	`meta (see left/right), links, metaconcept`
	CONCEPT	`This MBP is about BPs that feature concept: "semidecidable"`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1079

A left example can be verified to fit left by checking only finitely many layers deep vs. not so.

BP1058^↔	BP1060^↔	BP1061^↔	BP1062^↔	BP1063^↔	BP1065^↔
BP1068^↔	BP1077^↔	BP1058	BP1059	BP1061	BP1066
BP1070

BP1059^↔	BP1066^↔	BP1067^↔	BP1069^↔	BP1070^↔	BP1071^↔
BP1060	BP1062	BP1063	BP1065	BP1067	BP1068
BP1069	BP1071	BP1077

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

	CROSSREFS	`Adjacent-numbered pages: BP1074 BP1075 BP1076 BP1077 BP1078 * BP1080 BP1081 BP1082 BP1083 BP1084`
	KEYWORD	`meta (see left/right), links, side, wellfounded`
	CONCEPT	`semidecidable (info \| search),` `finite_infinite (info \| search)`
	WORLD	`recursive_boxes_bp [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1081

Left is an open subset of the rational numbers vs. not so.

	BP1047^↔	BP1048^↔	BP1050^↔	BP1053^↔	BP1044	BP1045
	BP1046	BP1052

	BP1044^↔	BP1045^↔	BP1046^↔	BP1051^↔	BP1052^↔	BP1054^↔
	BP1047	BP1048	BP1050	BP1051	BP1053	BP1054

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

	CROSSREFS	`Adjacent-numbered pages: BP1076 BP1077 BP1078 BP1079 BP1080 * BP1082 BP1083 BP1084 BP1085 BP1086`
	KEYWORD	`meta (see left/right), links, side, wellfounded`
	CONCEPT	`semidecidable (info \| search),` `finite_infinite (info \| search)`
	WORLD	`outline_or_fill_circle_bp_clear_set_of_ratios [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

BP1083

Image of Bongard Problem where each left example corresponds intuitively to a right example vs. image of Bongard Problem whose examples do not share this correlation.

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

	CROSSREFS	`See BP919 for the version with links to pages on the OEBP instead of images of Bongard Problems.` `Adjacent-numbered pages: BP1078 BP1079 BP1080 BP1081 BP1082 * BP1084 BP1085 BP1086 BP1087 BP1088`
	KEYWORD	`teach, meta (see left/right), miniproblems, presentationinvariant`
	WORLD	`boxes_bpimage [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP1084

Images of Bongard Problems about images of Bongard Problems vs. images of Bongard Problems not including images of Bongard Problems.

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

	CROSSREFS	`See BP537 for the version with links to pages on the OEBP instead of images of Bongard Problems.` `Adjacent-numbered pages: BP1079 BP1080 BP1081 BP1082 BP1083 * BP1085 BP1086 BP1087 BP1088 BP1089`
	KEYWORD	`meta (see left/right), miniproblems, perfect, infinitedetail, presentationinvariant`
	WORLD	`boxes_bpimage [smaller \| same \| bigger] zoom in left`
	AUTHOR	`Leo Crabbe`

BP1103

Bongard Problem with solution relating to concept: cube vs. Bongard Problem unrelated to this concept.

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

	CROSSREFS	`Adjacent-numbered pages: BP1098 BP1099 BP1100 BP1101 BP1102 * BP1104 BP1105 BP1106 BP1107 BP1108`
	KEYWORD	`meta (see left/right), links, metaconcept`
	CONCEPT	`This MBP is about BPs that feature concept: "cube"`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

BP1106

Bongard Problem with solution relating to concept: turning black regions white & white regions black vs. Bongard Problem unrelated to this concept.

BP556

BP948

BP1093

BP1107

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

	CROSSREFS	`Adjacent-numbered pages: BP1101 BP1102 BP1103 BP1104 BP1105 * BP1107 BP1108 BP1109 BP1110 BP1111`
	KEYWORD	`meta (see left/right), links, metaconcept`
	CONCEPT	`This MBP is about BPs that feature concept: "black_white_inversion"`
	WORLD	`bp [smaller \| same \| bigger]`
	AUTHOR	`Aaron David Fairbanks`

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