Definition to_g := TotalAction act_g_1 act_g_morph.Definition col0 (sc : col_cubes) : colors := sc F0.Definition col1 (sc : col_cubes) : colors := sc F1.Definition col2 (sc : col_cubes) : colors := sc F2.Definition col3 (sc : col_cubes) : colors := sc F3.Definition col4 (sc : col_cubes) : colors := sc F4.Definition col5 (sc : col_cubes) : colors := sc F5.Notation infE := (sameP afix1P eqP).

Lemma r50_inv : r50^-1 = r05.