intro (h : AA.TwoOfThree (n——m ≃ 0) (Positive (n——m)) (Negative (n——m)))
ℕ : Type
inst✝ : Natural ℕ
n m : ℕ
natOrderTri : AA.ExactlyOneOfThree (n < m) (n ≃ m) (n > m)
⊢ ¬AA.TwoOfThree (n——m ≃ 0) (Positive (n——m)) (Negative (n——m))
ℕ : Type
inst✝ : Natural ℕ
n m : ℕ
natOrderTri : AA.ExactlyOneOfThree (n < m) (n ≃ m) (n > m)
h : AA.TwoOfThree (n——m ≃ 0) (Positive (n——m)) (Negative (n——m))
⊢ False