fact: CoInductive lb_step_execution (step : lb_step_relation) : infseq event -> Prop := Cons_lb_step_exec : forall (e e' : event) (tr : list trace) (s : infseq event), step (evt_a e) (evt_l e) (evt_a e') tr -> evt_trace e' = evt_trace e ++ tr -> lb_step_execution step (Cons e' s) -> lb_step_execution step (Cons e (Cons e' s)).
imports: Verdi(Verdi) InfSeqExt(infseq exteq) Verdi(Ssrexport)