-lemma drops_fwd_fcla_lt2: ∀f,L1,I2,K2,V2. ⬇*[Ⓣ, f] L1 ≡ K2.ⓑ{I2}V2 →
- â\88\83â\88\83n. ð\9d\90\82â¦\83fâ¦\84 â\89¡ n & n < |L1|.
-#f #L1 #I2 #K2 #V2 #H elim (drops_fwd_fcla … H) -H
+lemma drops_fwd_fcla_lt2: ∀f,L1,I2,K2. ⬇*[Ⓣ, f] L1 ≘ K2.ⓘ{I2} →
+ â\88\83â\88\83n. ð\9d\90\82â¦\83fâ¦\84 â\89\98 n & n < |L1|.
+#f #L1 #I2 #K2 #H elim (drops_fwd_fcla … H) -H