[15] A wholesome phenomenon (dhamma) that is a root (hetu) is a condition for a wholesome phenomenon that is a root by decisive-support condition (upanissaya-paccaya): object decisive-support (ārammaṇūpanissaya), proximity decisive-support (anantarūpanissaya), natural decisive-support (pakatūpanissaya). Three.
A wholesome phenomenon that is not a root is a condition for a wholesome phenomenon that is not a root by decisive-support condition: object decisive-support, proximity decisive-support, natural decisive-support. Three.
A wholesome phenomenon that is a root and a wholesome phenomenon that is not a root are a condition for a wholesome phenomenon that is a root by decisive-support condition: object decisive-support, proximity decisive-support, natural decisive-support. Three.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.