Abstract
In this comment it is argued that the argument for a unique determination of the electromagnetic potentials in classical electrodynamics in [1] is flawed. To the contrary the "gauge freedom" of the electromagnetic potentials has proven as one of the most important properties in the development of modern physics, where local gauge invariance with its extension to non-Abelian gauge groups is a key feature in the formulation of the Standard Model of elementary particles in terms of a relativistic quantum field theory. [1] A. Davis, Eur. J. Phys. 41, 045202 (2020)
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