  In this paper we present a set transformation of points in a line of the
Desargues affine plane in a additive group. For this, the first stop on the
meaning of the Desargues affine plane, formulating first axiom of his that show
proposition D1. Afterwards we show that little Pappus theorem, which we use in
the construction of group proofs in additions of points on a line on desargues
plane, also applies in the Desargues affine plane.
