  The phenomenon of unpaired Weyl fermions appearing on the sole 2n-dimensional
boundary of a (2n+1)-dimensional manifold with massive Dirac fermions was
recently analyzed in a companion paper by one of the authors. In this Letter we
show that similar unpaired Weyl edge states can be seen on a finite lattice. In
particular, we consider the discretized Hamiltonian for a Wilson fermion in
(2+1) dimensions with a 1+1 dimensional boundary and continuous time. We
demonstrate that the low lying boundary spectrum is indeed Weyl-like: it has a
linear dispersion relation and definite chirality and circulates in only one
direction around the boundary. We comment on how our results are consistent
with Nielsen-Ninomiya theorem. This work removes one potential obstacle facing
the program for regulating chiral gauge theories recently proposed by one of
the authors.
