Arnauld called himself a follower of St Augustine, which of course was not unreasonable since Jansen had based his beliefs on those of St Augustine. However, the Jesuits called Arnauld a Jansenist and in 1656 after heated theological arguments he was expelled from the Sorbonne for his Jansenist views.
Arnauld tinatawag siya mismo ng isang lingkod ng St Augustine, na ng kurso ay hindi dahil wala sa katwiran Jansen had batay sa kanyang paniniwala sa mga ng St Augustine. Gayunman, ang mga Heswita na tinatawag na Arnauld isang Jansenist at sa 1656 matapos ang pinainit teolohiko arguments siya ay pinatalsik mula sa Sorbonne para sa kanyang Jansenist views.