# n-ary-tuple [*Relation*]

## Remarks

The relation **n-ary-tuple** is at the top of the n-ary relation hierarchy, that is, it subsumes all other relations having arity three or more.

## Examples

(defrelation distance :arity 3)
(ask (subrelations n-ary-tuple distance)) ==> T

## See Also

Last modified: Jun 1 1995