definition foo₁ [forward] : ∀ (x : ℕ), f x ∧ g x :=
sorry
(multi-)patterns:
?M_1 : ℕ
{g ?M_1}
{f ?M_1}
definition foo₂ [forward] : ∀ (x : ℕ), (:f x:) ∧ g x :=
sorry
(multi-)patterns:
?M_1 : ℕ
{f ?M_1}
definition foo₃ [forward] : ∀ (x : ℕ), (:f (id x):) ∧ g x :=
sorry
(multi-)patterns:
?M_1 : ℕ
{f ?M_1}