Poincare group electrodynamics is (C) over cap (P) over cap (T) over c
ap conserving and Lorentz covariant under all conditions by definition
. Examples are given of these properties. Comay's comment is incorrect
: any (C) over cap (P) over cap (T) over cap conserving field theory t
hat is Lorentz covariant is consistent with special relativity, whose
underlying group is the Poincare group.