Sentence:  Lemma 2.2 "Let E be an elliptic curve such that \Z[π] is maximal at \mathcal{l}. If there exists an \mathcal{l}-<WSD>isogeny</WSD> of E, then this \mathcal{l}-<WSD>isogeny</WSD> is ansic horizontal \mathcal{l}-<WSD>isogeny</WSD>." 
Meaning of the word marked with <WSD> tags:  An epimorphism of group schemes that is surjective and has a finite kernel.