proposition: Lemma eqd_ltrans : left_transitive (@eqd R).
proof: Proof. exact: (left_trans eqd_sym eqd_trans). Qed.
imports: HB(structures) Coq(ssreflect ssrfun ssrbool Arith.Wf_nat) mathcomp(eqtype ssrnat div seq path) mathcomp(ssralg fintype perm tuple choice generic_quotient) mathcomp(matrix bigop zmodp mxalgebra poly) stronglydiscrete