Cum occasione

 is an apostolic constitution in the form of a papal bull promulgated by Pope Innocent X in 1653 which condemned five propositions said to have been found in Cornelius Jansen's "Augustinus" as heretical.
The five errors of Jansen on Grace condemned in "" are:
Bernard Otten explained, in "A manual of the history of dogmas", that the first four of these propositions are absolutely condemned as heretical; while the fifth is condemned as heretical when taken in the sense that Christ died only for the predestined.