-lemma feqx_lpxs_trans (h): ∀G1,G2,L1,L0,T1,T2. ⦃G1,L1,T1⦄ ≛ ⦃G2,L0,T2⦄ →
- ∀L2. ⦃G2,L0⦄ ⊢⬈*[h] L2 →
- ∃∃L. ⦃G1,L1⦄ ⊢⬈*[h] L & ⦃G1,L,T1⦄ ≛ ⦃G2,L2,T2⦄.
-#h #G1 #G2 #L1 #L0 #T1 #T2 #H1 #L2 #HL02
+lemma feqx_lpxs_trans:
+ ∀G1,G2,L1,L0,T1,T2. ❪G1,L1,T1❫ ≛ ❪G2,L0,T2❫ →
+ ∀L2. ❪G2,L0❫ ⊢⬈* L2 →
+ ∃∃L. ❪G1,L1❫ ⊢⬈* L & ❪G1,L,T1❫ ≛ ❪G2,L2,T2❫.
+#G1 #G2 #L1 #L0 #T1 #T2 #H1 #L2 #HL02