f those arguments. That is, supposing the given argument-place is the Nth, the entry-format tells us something about the number or range of different sequences of arguments of which the predicate holds and that differ from each other only in their Nth items. For example, the format #$SingleEntry (q.v.) is used to state that in every case there is at most only one such sequence, the format #$SetTheFormat (q.v.) to state that there is no particular (upper or lower) limit to the number of such sequences that a