-theorem nta_fwd_fsb (a) (h) (o) (G) (L):
- ∀T,U. ⦃G,L⦄ ⊢ T :[a,h] U →
- ∧∧ ≥[h,o] 𝐒⦃G,L,T⦄ & ≥[h,o] 𝐒⦃G,L,U⦄.
-#a #h #o #G #L #T #U #H
+theorem nta_fwd_fsb (h) (a) (G) (L):
+ ∀T,U. ⦃G,L⦄ ⊢ T :[h,a] U →
+ ∧∧ ≥[h] 𝐒⦃G,L,T⦄ & ≥[h] 𝐒⦃G,L,U⦄.
+#h #a #G #L #T #U #H