In 1655 Arnauld supported the Jansenists in two pamphlets and again he was on dangerous ground since Pope Innocent X had condemned five propositions in the Augustinus two years earlier.
Sa 1655 Arnauld suportado ang Jansenists sa dalawang mga polyeto at muli siya sa mapanganib na lupa dahil Pope Innocent X na nahatulan ng limang propositions sa Augustinus dalawang taon na mas maaga.