-lemma nta_inv_lref_sn_drops_cnv (a) (h) (G) (L):
- ∀X2,i. ⦃G,L⦄ ⊢ #i :[a,h] X2 →
- â\88¨â\88¨ â\88\83â\88\83K,V,W,U. â¬\87*[i] L â\89\98 K.â\93\93V & â¦\83G,Kâ¦\84 â\8a¢ V :[a,h] W & â¬\86*[â\86\91i] W â\89\98 U & â¦\83G,Lâ¦\84 â\8a¢ U â¬\8c*[h] X2 & â¦\83G,Lâ¦\84 â\8a¢ X2 ![a,h]
- | â\88\83â\88\83K,W,U. â¬\87*[i] L â\89\98 K. â\93\9bW & â¦\83G,Kâ¦\84 â\8a¢ W ![a,h] & â¬\86*[â\86\91i] W â\89\98 U & â¦\83G,Lâ¦\84 â\8a¢ U â¬\8c*[h] X2 & â¦\83G,Lâ¦\84 â\8a¢ X2 ![a,h].
-#a #h #G #L #X2 #i #H
+lemma nta_inv_lref_sn_drops_cnv (h) (a) (G) (L):
+ ∀X2,i. ⦃G,L⦄ ⊢ #i :[h,a] X2 →
+ â\88¨â\88¨ â\88\83â\88\83K,V,W,U. â\87©*[i] L â\89\98 K.â\93\93V & â¦\83G,Kâ¦\84 â\8a¢ V :[h,a] W & â\87§*[â\86\91i] W â\89\98 U & â¦\83G,Lâ¦\84 â\8a¢ U â¬\8c*[h] X2 & â¦\83G,Lâ¦\84 â\8a¢ X2 ![h,a]
+ | â\88\83â\88\83K,W,U. â\87©*[i] L â\89\98 K. â\93\9bW & â¦\83G,Kâ¦\84 â\8a¢ W ![h,a] & â\87§*[â\86\91i] W â\89\98 U & â¦\83G,Lâ¦\84 â\8a¢ U â¬\8c*[h] X2 & â¦\83G,Lâ¦\84 â\8a¢ X2 ![h,a].
+#h #a #G #L #X2 #i #H