Which of the following means of knowledge involves the positing of something for making a unit of cognition self-complete?

This means of knowledge is postulation, Arthapatti.

A known fact is found that cannot stand on its own without some further assumption.

To close that gap, an unstated fact is posited so the cognition becomes self-complete.

Positing this required condition is the very operation described.

Supplying such an assumption to complete an otherwise unaccountable fact defines Arthapatti.