At Touchstone’s blog, Leon Podles writes:
Edwards identified the dissenters from this concept of the will as Arminians and behind them the Jesuits, who both believed in the freedom of indifference. Edwards does not go further back to Occam and Scotus, but I think that their nominalism and voluntarism is the original Western source of the freedom of indifference.
During the controversy De Auxiliis, the Jesuits accused the Dominicans of Calvinism, and the Dominicans accused the Jesuits of Pelagianism. The pope resolved the matter by telling them both to stop accusing each other of heresy.
Another illustration of the necessity of the papal office.