subst_vars
case hMaxm.inr.intro
α : Type u_1
inst✝ : DecidableEq α
p p✝ w✝ : Formula α
e : Axioms.Four w✝ = p✝
⊢ 𝐊𝟒𝐇 ⊢! p✝
case hMaxm.inr.intro
α : Type u_1
inst✝ : DecidableEq α
p w✝ : Formula α
⊢ 𝐊𝟒𝐇 ⊢! Axioms.Four w✝