Note 837 — Chapter V · THE WORKS OF EURIPIDES (continued 3)
Reading edition
He seems in private conversation to have maintained the necessity of this; compare the criticism of Æschylus which he utters in the Frogs, 1122: ἀσαφὴς γὰρ ἦν ἐν τῇ φράσει τῶν πραγμάτων. φ.τ.π. is precisely “prologue” in the Euripidean sense.