Editing Universal algebra (section)

==== Other examples ====
Most algebraic structures are examples of universal algebras.
* [[Ring (mathematics)|Rings]], [[semigroup]]s, [[quasigroup]]s, [[groupoid]]s, [[Magma (mathematics)|magmas]], [[Loop (algebra)|loops]], and others.
* [[Vector space]]s over a fixed field and [[module (mathematics)|modules]] over a fixed ring are universal algebras. These have a binary addition and a family of unary scalar multiplication operators, one for each element of the field or ring.

Examples of relational algebras include [[semilattice]]s, [[lattice (order)|lattices]], and [[Boolean algebra]]s.