👉 In mathematics, a submodule of a module is an ideal in which every element of the module can be expressed as a finite sum of elements of this submodule. This means that for any element m of the module M, there exists a unique submodule N such that mn = 0 for all n ∈ N. For example, consider the ring R[x] with addition defined by (a + b)(x) = ax + bx for all x and a, b in R. The submodule generated by