-lemma nta_inv_lref_sn_drops_cnv (h) (a) (G) (L):
- â\88\80X2,i. â¦\83G,Lâ¦\84 ⊢ #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¬\86*[â\86\91i] W â\89\98 U & â¦\83G,Lâ¦\84 â\8a¢ U â¬\8c*[h] X2 & â¦\83G,Lâ¦\84 ⊢ 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¬\86*[â\86\91i] W â\89\98 U & â¦\83G,Lâ¦\84 â\8a¢ U â¬\8c*[h] X2 & â¦\83G,Lâ¦\84 ⊢ X2 ![h,a].
+lemma nta_inv_lref_sn_drops_cnv (h) (a) (G) (L):
+ â\88\80X2,i. â\9dªG,Lâ\9d« ⊢ #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\9dªG,Kâ\9d« â\8a¢ V :[h,a] W & â\87§[â\86\91i] W â\89\98 U & â\9dªG,Lâ\9d« â\8a¢ U â¬\8c*[h] X2 & â\9dªG,Lâ\9d« ⊢ X2 ![h,a]
+ | â\88\83â\88\83K,W,U. â\87©[i] L â\89\98 K. â\93\9bW & â\9dªG,Kâ\9d« â\8a¢ W ![h,a] & â\87§[â\86\91i] W â\89\98 U & â\9dªG,Lâ\9d« â\8a¢ U â¬\8c*[h] X2 & â\9dªG,Lâ\9d« ⊢ X2 ![h,a].