-lemma csx_applv_delta_drops (h) (G):
- ∀I,L,K,V1,i. ⬇*[i] L ≘ K.ⓑ{I}V1 →
- â\88\80V2. â¬\86*[↑i] V1 ≘ V2 →
- â\88\80Vs. â¦\83G,Lâ¦\84 â\8a¢ â¬\88*[h] ð\9d\90\92â¦\83â\92¶Vs.V2â¦\84 â\86\92 â¦\83G,Lâ¦\84 â\8a¢ â¬\88*[h] ð\9d\90\92â¦\83â\92¶Vs.#iâ¦\84.
-#h #G #I #L #K #V1 #i #HLK #V2 #HV12 #Vs elim Vs -Vs
+lemma csx_applv_delta_drops (G) (L):
+ ∀I,K,V1,i. ⇩[i] L ≘ K.ⓑ[I]V1 →
+ â\88\80V2. â\87§[↑i] V1 ≘ V2 →
+ â\88\80Vs. â\9dªG,Lâ\9d« â\8a¢ â¬\88*ð\9d\90\92 â\92¶Vs.V2 â\86\92 â\9dªG,Lâ\9d« â\8a¢ â¬\88*ð\9d\90\92 â\92¶Vs.#i.
+#G #L #I #K #V1 #i #HLK #V2 #HV12 #Vs elim Vs -Vs