  That a superposition of fundamental solutions to the $p$-Laplace Equation is
$p$-superharmonic -- even in the non-linear cases $p>2$ -- has been known since
M. Crandall and J. Zhang published their paper "Another Way to Say Harmonic" in
2003. We give a simple proof and extend the result by means of an explicit
formula for the $p$-Laplacian of the superposition.
