-fact csn_fwd_bind_dx_aux: â\88\80L,U. L â\8a¢ â¬\87* U →
- ∀I,V,T. U = ⓑ{I} V. T → L. ⓑ{I} V ⊢ ⬇* T.
-#L #U #H elim H -H #U0 #_ #IH #I #V #T #H destruct
+fact csn_fwd_bind_dx_aux: â\88\80L,U. L â\8a¢ â¬\8a* U →
+ ∀a,I,V,T. U = ⓑ{a,I} V. T → L. ⓑ{I} V ⊢ ⬊* T.
+#L #U #H elim H -H #U0 #_ #IH #a #I #V #T #H destruct