Let R ⊆ M × M {\displaystyle {}R\subseteq M\times M} denote an equivalence relation. The set
is called the quotient set of R {\displaystyle {}R} .
![{\displaystyle {}M/R:={\left\{[x]\mid x\in M\right\}}\,}](https://wikimedia.org/api/rest_v1/media/math/render/svg/c4b3a6e37ac167c6a75d7f64b88ea1a6cc24e311)
