[836] An external (bahiddhā) phenomenon (dhamma) that is a root (hetu) is a condition (paccaya) for an external phenomenon that is a root by predominance condition (adhipati-paccaya): object-predominance (ārammaṇādhipati), conascence-predominance (sahajātādhipati). Three.
An external phenomenon that is not a root (na hetu) is a condition for an external phenomenon that is not a root by predominance condition: object-predominance, conascence-predominance. Three.
An external phenomenon that is a root and an external phenomenon that is not a root are a condition for an external phenomenon that is a root by predominance condition: object-predominance. Three.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.