👉 In mathematics, a "bockerel" is an element of a commutative ring R. It is defined as follows: 1. If x and y are elements in R, then x + y and xy are also elements in R. 2. The additive identity element (0) is also an element of R. For example, the ring Z/9Z is a commutative ring with 3 elements, and we can define a "bockerel" in this ring as