Definition juicyRestrict':=
      fun phi m macoh => @juicyRestrict phi m (max_acc_coh_acc_coh macoh).

Lemma po_join_sub': forall r1 r2 : resource, join_sub r2 r1 -> Mem.perm_order'' (perm_of_res' r1) (perm_of_res' r2).