fact: Definition aLGet {Z S} : [the functor of StateOpsGet.acto S].-aoperation (exceptT Z (M S)) := alifting (get_aop S) (Lift _ (M S)).
imports: mathcomp(all_ssreflect) imonae_lib HB(structures) ihierarchy imonad_lib ifail_lib istate_lib itrace_lib imonad_transformer