Rhet gre 1414a35-37τούτων δὲ τὸ μὲν πρόθεσίς ἐστι (36) τὸ δὲ πίστις, ὥσπερ ἂν εἴ τις διέλοι ὅτι τὸ μὲν πρόβλημα (37) τὸ δὲ ἀπόδειξις.
Rhys Roberts 1924 engsince any proof must be a proof of something, and the only use of a preliminary statement is the proof that follows it.
http://www2.hf.uio.no/common/apps/permlink/permlink.php?app=polyglotta&context=record&uid=d25d0d39-1d51-11e7-ba66-0050569f23b2
