proposition: Fact perm_of_porbit_subproof C : injective (next (enum C)).
proof: Proof. Proof using. by apply uniq_next; exact: enum_uniq. Qed.
imports: mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq choice fintype) mathcomp(tuple finfun finset path bigop) mathcomp(fingroup perm action) mathcomp(ssralg matrix mxalgebra algC classfun) partition tools sorted permcomp fibered_set cycles