(* properties concerning lenv refinement for atomic arity assignment ********)
lemma lsuba_lsubc: ∀RR,RS,RP. acp RR RS RP → acr RR RS RP (λG,L,T. RP G L T) →
- â\88\80G,L1,L2. G â\8a¢ L1 â\81\9dâ\8a\91 L2 â\86\92 G â\8a¢ L1 â\8a\91[RP] L2.
+ â\88\80G,L1,L2. G â\8a¢ L1 â\81\9dâ«\83 L2 â\86\92 G â\8a¢ L1 â«\83[RP] L2.
#RR #RS #RP #H1RP #H2RP #G #L1 #L2 #H elim H -L1 -L2 // /2 width=1/
#L1 #L2 #W #V #A #H elim (aaa_inv_cast … H) -H /3 width=4/
qed.