Simply laced group
This article defines a property that can be evaluated for an algebraic group. it is probably not a property that can directly be evaluated, or make sense, for an abstract group|View other properties of algebraic groupsTemplate:Lie group property
This translates to the requirement that the product of any two of the generators of the Weyl group (generators arising from a system of simple roots) has order either 1, 2, or 3.
Among the semisimple algebraic groups, the A, D, and E types are simply laced.