-lemma csx_appl_simple_tstc: ∀h,g,G,L,V. ⦃G, L⦄ ⊢ ⬊*[h, g] V → ∀T1. ⦃G, L⦄ ⊢ ⬊*[h, g] T1 →
- (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â\9e¡*[h, g] T2 â\86\92 (T1 â\89\83 T2 → ⊥) → ⦃G, L⦄ ⊢ ⬊*[h, g] ⓐV.T2) →
+lemma csx_appl_simple_tsts: ∀h,g,G,L,V. ⦃G, L⦄ ⊢ ⬊*[h, g] V → ∀T1. ⦃G, L⦄ ⊢ ⬊*[h, g] T1 →
+ (â\88\80T2. â¦\83G, Lâ¦\84 â\8a¢ T1 â\9e¡*[h, g] T2 â\86\92 (T1 â\89\82 T2 → ⊥) → ⦃G, L⦄ ⊢ ⬊*[h, g] ⓐV.T2) →