- â\88\80T0. â¦\83G,Lâ¦\84 ⊢ T0 ![h,a] →
- â\88\80n1,T1. â¦\83G,Lâ¦\84 ⊢ T0 ➡*𝐍𝐖*[h,n1] T1 →
- â\88\80n2,T2. â¦\83G,Lâ¦\84 ⊢ T0 ➡*𝐍𝐖*[h,n2] T2 →
- â\88§â\88§ â¦\83G,Lâ¦\84 ⊢ T1 ⬌*[h,n2-n1,n1-n2] T2 & T1 ≅ T2.
+ â\88\80T0. â\9dªG,Lâ\9d« ⊢ T0 ![h,a] →
+ â\88\80n1,T1. â\9dªG,Lâ\9d« ⊢ T0 ➡*𝐍𝐖*[h,n1] T1 →
+ â\88\80n2,T2. â\9dªG,Lâ\9d« ⊢ T0 ➡*𝐍𝐖*[h,n2] T2 →
+ â\88§â\88§ â\9dªG,Lâ\9d« ⊢ T1 ⬌*[h,n2-n1,n1-n2] T2 & T1 ≅ T2.