proposition: Lemma cm0 v : complete v Unit v.
proof: Proof. by split=>//; [apply: gp0 | apply: cn0 | rewrite lastatval0]. Qed.
imports: Coq(ssreflect ssrbool ssrfun) mathcomp(ssrnat eqtype seq path interval) pcm(options prelude pred finmap rtc seqext useqord uslice uconsec)