proposition: Lemma oexle_rcons_notin V R a ks k t (h : natmap V) (z0 : R) : t \notin ks -> oexec_le a (rcons ks k) t h z0 = oevalv a (rcons ks k) h z0.
proof: Proof. by move=>T; rewrite /oexec_le eqsl_uL_rconsE (negbTE T). Qed.
imports: Coq(ssreflect ssrbool ssrfun) mathcomp(ssrnat eqtype seq path interval) pcm(options prelude pred finmap rtc seqext useqord uslice uconsec)