exact ⟨p ⋏ q, by simp, by simp [hp, hq]⟩
case inl.inl
L : Language
Δ : List (SyntacticFormula L)
p q : SyntacticFormula L
dp : Derivation (p :: Δ)
dq : Derivation (q :: Δ)
M : Type u_1
s : Structure L M
ε : ℕ → M
hp : (Evalfm M ε) p
hq : (Evalfm M ε) q
⊢ ∃ p_1 ∈ p ⋏ q :: Δ, (Evalfm M ε) p_1
no goals