  In a deformation quantization of $\Real^n$, the Jacobi identity is
automatically satisfied. This article poses the contrary question: Given a set
of commutators which satisfies the Jacobi identity, is the resulting
associative algebra a deformation quantization of $\Real^n$? It is shown that
the result is true. However care must taken when stating precisely how and in
which algebra the Jacobi identity is satisfied.
