👉 A "pullorum" in the context of mathematics is a subset or subgroup of a group. In particular, it is a collection of elements that are inverses to each other under a given operation on the group. This can be thought of as a set of "invertible" elements, which means they have an inverse under the operation. For example, in the group of integers modulo 6 (Z_6), the pullorum are the numbers that multiply together to give 0, because
