Marin Mersenne notably held, for ten points, what general occupation of formal involvement with religion?
A mathematician who co-names a theorem about convergent sequences with Weierstrass also held this non-academic occupation. The developer of the mean speed theorem and a member of the Oxford Calculators, Thomas Bradwardine, held this occupation and was elevated to a very high position within it shortly before his death. The mathematician who discovered the determinant form for the higher-order chain rule, and after whom it is named, held this occupation and was   beati ed as a result of his work in this occupation. Marin Mersenne notably held, for ten points, what general occupation of formal involvement with religion?
A mathematician who co-names a theorem about convergent sequences with Weierstrass also held this non-academic occupation.
Roman Catholic clergy [accept monks or priests or other speci c clerical occupations]