אָמַן
προγράψαντες οὖν τά τε θεωρήματα καὶ τὰ ἐπιτάγματα τὰ χρεῖαν ἔχοντα εἰς τὰς ἀποδείξιας αὐτῶν μετὰ ταῦτα γραψοῦμές τοι τὰ προκείμενα → having therefore written at the beginning the theorems and the postulates that are necessary for their proofs, we will then write out for you the propositions
English (Strong)
a primitive root; properly, to build up or support; to foster as a parent or nurse; figuratively to render (or be) firm or faithful, to trust or believe, to be permanent or quiet; morally to be true or certain; once (Isa. 30:21; interchangeable with תַאֲמִין) to go to the right hand: hence, assurance, believe, bring up, establish, + fail, be faithful (of long continuance, stedfast, sure, surely, trusty, verified), nurse, (-ing father), (put), trust, turn to the right.
