sentences:  Symmetric or not, having a lattice section formula_108 guarantees that formula_17 also has internal copies of formula_71 and formula_82 given respectively by formula_119 and formula_120, where formula_121 and formula_122 are the formula_54 and formula_53 congruence classes of formula_125 in formula_108 .Thus formula_127 and formula_128 are isomorphisms.This leads to a commuting diagram of embedding dualizing the preceding Kimura diagram.