A topological group where the connected components are one-point sets. Examples include the p-adic integers (the completion of the rationals with respect to the p-adic metric) and any profinite group (the inverse limit of a system of finite groups).
A topological group where the connected components are one-point sets. Examples include the p-adic integers (the completion of the rationals with respect to the p-adic metric) and any profinite group (the inverse limit of a system of finite groups).