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| Term | Description |
|---|---|
| BP | Bongard Problem. A vertical dividing line with a collection of objects on either side. Furthermore, there must be some simple description for each side that describes no object on the opposite side. See this page for more information. |
| example | An object belonging to one of the two sides in a Bongard Problem. |
| box or panel |
A picture inside a square outline. Traditionally, each example in a Bongard Problem is displayed in a box to visually separate it from the other examples. |
| rule or pattern |
Some property in common among a collection of objects. |
| solution or answer |
A rule that all examples on one side of a Bongard Problem fit but none on the other side do. |
| MBPr | Meta Bongard Problem. A Bongard Problem whose examples are Bongard Problems. |
| MMBP | Meta Meta Bongard Problem. A Bongard Problem whose examples are meta Bongard Problems. |
| keyword | An organizational tag used to categorize Bongard Problems on the OEBP. Keywords make it easy to search for all Bongard Problems of a certain kind. See this page for a complete list of keywords. |
| world | The type of thing a Bongard Problem sorts. This is the most obvious rule all examples from both sides obey. See this page for more information. |
| ambiguity | An object is called ambiguous as a potential example for a Bongard Problem if it wouldn't clearly be sorted on the left or the right. See this page for more information. |
| narrow | A rule is "narrow" if people can figure out what it is just by seeing a lot of examples that satisfy it, without being given any counter-examples.
"Shaped like a five pointed star" is a narrow rule. When you see a collection of five pointed stars, it is obvious that is the pattern. "Not shaped like a five pointed star" is not narrow. When you see a collection of shapes that are not five pointed stars, the absence of five pointed stars won't jump out at you; you will just see the pattern as "shapes". To indicate a side of a Bongard Problem is narrow, use the keyword "left-narrow" or "right-narrow". (Note that it is possible for both to apply.) |
| wide |
A rule is "wide" when it is not narrow and its negation is narrow.
"Not shaped like a five pointed star" is a wide rule. Narrow rules seem intuitively "positive" and wide rules seem intuitively "negative". If one side of a Bongard Problem is to be narrow and the other side is to be wide, we on the OEBP as a loose convention prefer to put the narrow side on the left. ("Stars vs. not stars" as opposed to "Not stars vs. stars".) |