- â\88\80G,L,T1,T. â¦\83G,Lâ¦\84 â\8a¢ T1 â\9e¡*[n1,h] T →
- â\88\80T2. â¦\83G,Lâ¦\84 â\8a¢ T2 â\9e¡*[n2,h] T â\86\92 â¦\83G,Lâ¦\84 ⊢ T1 ⬌*[h,n1,n2] T2.
+ â\88\80G,L,T1,T. â\9d¨G,Lâ\9d© â\8a¢ T1 â\9e¡*[h,n1] T →
+ â\88\80T2. â\9d¨G,Lâ\9d© â\8a¢ T2 â\9e¡*[h,n2] T â\86\92 â\9d¨G,Lâ\9d© ⊢ T1 ⬌*[h,n1,n2] T2.