| http://www.w3.org/ns/prov#value | - Local symmetries form the basis for gauge theories - QED is an abelian gauge theory with the symmetry group $U(1)$, quantum chromodynamics, is a gauge theory with the action of the $SU(3)$ group, and the main attraction: the Standard Model is a non-abelian gauge theory with the symmetry group $U(1)??SU(2)??SU(3)$.
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