Theorem: LO.Semantics.meaningful_iff (Logic/Logic/Semantics.lean)

State before:
M : Type u_1
F : Type u_2
inst✝ : LogicalConnective F
𝓢 : Semantics F M
𝓜 : M
⊢ Meaningful 𝓜 → ∃ f, ¬𝓜 ⊧ f
Tactic:
rintro ⟨h⟩
State after:
case mk
M : Type u_1
F : Type u_2
inst✝ : LogicalConnective F
𝓢 : Semantics F M
𝓜 : M
h : ∃ f, ¬𝓜 ⊧ f
⊢ ∃ f, ¬𝓜 ⊧ f

State before:
case mk
M : Type u_1
F : Type u_2
inst✝ : LogicalConnective F
𝓢 : Semantics F M
𝓜 : M
h : ∃ f, ¬𝓜 ⊧ f
⊢ ∃ f, ¬𝓜 ⊧ f
Tactic:
exact h
State after:
no goals