exact h₁
axs : Statement → Prop
Γ : Context
σ : VR → Expr
c : CN
f : Expr
hyps : List (CN × Expr)
e : Expr
inst✝ : Subst σ f e
h₁ : Provable axs Γ (c, Expr.subst σ f)
h₂ : ∀ (h : Formula), h ∈ hyps → Provable axs Γ (Formula.subst σ h)
⊢ Provable axs Γ (Formula.subst σ (c, f))
no goals