- â\88\80T1. â¦\83G,Lâ¦\84 â\8a¢ T1 ![h,a] â\86\92 â\88\80T2. â¦\83G,Lâ¦\84 ⊢ T2 ![h,a] →
- Decidable â\80¦ (â¦\83G,Lâ¦\84 ⊢ T1 ⬌*[h] T2).
+ â\88\80T1. â\9dªG,Lâ\9d« â\8a¢ T1 ![h,a] â\86\92 â\88\80T2. â\9dªG,Lâ\9d« ⊢ T2 ![h,a] →
+ Decidable â\80¦ (â\9dªG,Lâ\9d« ⊢ T1 ⬌*[h] T2).