[637] Hetupaccayā naārammaṇe tīṇi.

[638] Nahetupaccayā ārammaṇe nava. Yathā kusalattike pañhāvārassa anulomampi paccanīyampi anulomapaccanīyampi paccanīyānulomampi gaṇitaṃ evaṃ gaṇetabbaṃ. ------- Paṭiccavāro

[639] Hetuṃ majjhimaṃ dhammaṃ paṭicca hetu majjhimo dhammo uppajjati hetupaccayā:.

[640] Hetuyā nava ārammaṇe nava avigate nava.