The decision problem is studied for the nonmodal or multiplicative-add
itive fragment of first-order linear logic. This fragment is shown to
be NEXPTIME-hard. The hardness proof combines Shapiro's logic programm
ing simulation of nondeterministic Turing machines with the standard p
roof of the PSPACE-hardness of quantified boolean formula validity, ut
ilizing some of the surprisingly powerful and expressive machinery of
linear logic.