∀n1,T. ❪G,L❫ ⊢ T1 ➡[h,n1] T → (T1 ≅ T → ⊥) →
∀n2,T2. ❪G,L❫⊢ T ➡*[h,n2] T2 → T1 ≅ T2 → ❪G,L,T1❫ > ❪G,L,T1❫.
#h #G #L #T1 #n1 #T #H1T1 #H2T1 #n2 #T2 #H1T2 #H2T12
∀n1,T. ❪G,L❫ ⊢ T1 ➡[h,n1] T → (T1 ≅ T → ⊥) →
∀n2,T2. ❪G,L❫⊢ T ➡*[h,n2] T2 → T1 ≅ T2 → ❪G,L,T1❫ > ❪G,L,T1❫.
#h #G #L #T1 #n1 #T #H1T1 #H2T1 #n2 #T2 #H1T2 #H2T12