  We prove that the classical theory with a discrete time (chronon) is a
particular case of a more general theory in which spinning particles are
associated with generalized Lagrangians containing time-derivatives of any
order (a theory that has been called "Non-Newtonian Mechanics"). As a
consequence, we get, for instance, a classical kinematical derivation of
Hamiltonian and spin vector for the mentioned chronon theory (e.g., in
Caldirola et al.'s formulation).
