proposition: Corollary negB0 n : @negB n #0 = #0.
proof: Proof. destruct n; first apply trivialBits. apply toZp_inj. autorewrite with ZpHom. by rewrite oppr0. Qed.
imports: HB(structures) mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq fintype tuple zmodp div) ssrextra.tuple ssrextra.nat spec spec.properties operations mathcomp(ssralg)