Rolling Simplexes and their Commensurability. (Axiom and Criterion of Incompressibility, Momentum Lemma) / Razmyslov Yu.P. // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2011. № 5. P. 55-58 [Moscow Univ. Math. Bulletin. Vol. 72, N 2, 2017. P. 0].

The total geometrical theory of field is recreated.

Key words: projective plane, affine chart, rolling, incompressibility, desargues condition, field.