proposition: Lemma eval_dom0 a p f z0 : dom f =i [::] -> eval a p f z0 = z0.
proof: Proof. by move=> H; rewrite /eval oev_dom0. Qed.
imports: Coq(ssreflect ssrbool ssrfun) mathcomp(ssrnat eqtype seq path bigop) pcm(options prelude finmap seqperm pred seqext) pcm(pcm morphism)