exact truthlemma.mpr this
α : Type u_1
inst✝⁴ : DecidableEq α
inst✝³ : Inhabited α
𝓓 : DeductionParameter α
inst✝² : 𝓓.IncludeEFQ
inst✝¹ : Encodable α
inst✝ : Inhabited (SCT 𝓓)
t✝ : SCT 𝓓
p : Formula α
h : 𝓓 ⊢! p
t : (CanonicalModel 𝓓).World
this : p ∈ t.tableau.1
⊢ t ⊧ p
no goals