132b

οὐκοῦν τοσοῦτον μὲν ἡμῖν εἰς τὸ πρόσθεν πεπέρανται
so, that much has been accomplished by us with respect to progress. This πεπέρανται is poetic so why is it in prose? I would also expect sing. πεπέρασται.