Epicurus, On Nature 28.10.1a (Sedley reconstruction) "πραγματικῶν θεωρημάτων ἐνδίξει καὶ τὴν μερίληψιν... τῆς δόξης... περὶ ταύτης τε τῆς εἰς τοῦτο ἐμβαλλούσης ὑπολήψεως. ὄντων δ' οὖν τοιούτων οἶον... τούτων κατὰ τὴν αἵρεσιν πραττόντων... τῆς ἐπαγωγῆς γιγνέσθω τῆς πραγματικῆς..."
τὴν μερίληψιν (tēn merílēpsin): Part-taking, Partiality, Fragmentation
28.10.1a is SO fragmentary! Your smooth transcription somewhat obscures that. There is a LOT of missing papyrus in that column.
It also looks like Sedley has περ̣[ίληψ]ιμ where you have μερίληψιν (Sedley pi π.., your mu μ..).
Here's the engraving of that column from Papyri.info!
Oh my! It looks even worse when you see the papyrus itself. Getting more than a few words strung together at a time from that seems highly problematic.