exact hi ht (e₂.deterministic e₁ ▸ e₂')
α : Type
inst✝ : Proper α
s s₁ s₁✝ s₂✝¹ s₃✝ : State α
e₁ : s₁✝ ↓ₜ s₂✝¹
e₁' : RTC s₂✝¹ s₃✝
hi : ∀ {s₂ : State α}, s₃✝.tag = s₂.tag → RTC s₂✝¹ s₂ → s₃✝ = s₂
s₂ : State α
ht : s₃✝.tag = s₂.tag
s₂✝ : State α
e₂ : s₁✝ ↓ₜ s₂✝
e₂' : RTC s₂✝ s₂
⊢ s₃✝ = s₂
no goals