proposition: Lemma oexle_cons_same_notin V R a ks k (h : natmap V) (z0 : R) : k \notin dom h -> oexec_le a (k :: ks) k h z0 = z0.
proof: Proof. move=>H. by rewrite /oexec_le [in LHS]oevFK eqsl_uL_consL /= (negbTE H). Qed.
imports: Coq(ssreflect ssrbool ssrfun) mathcomp(ssrnat eqtype seq path interval) pcm(options prelude pred finmap rtc seqext useqord uslice uconsec)