no goals
α : Type ?u.7802
ι : Type u_1
β : ι → Type u_2
inst✝² : Fintype ι
inst✝¹ : (i : ι) → DecidableEq (β i)
γ : ι → Type ?u.7834
inst✝ : (i : ι) → DecidableEq (γ i)
x y : (i : ι) → β i
⊢ hammingDist x y = 0 → x = y
simp_rw [hammingDist, card_eq_zero, filter_eq_empty_iff, Classical.not_not, funext_iff, mem_univ,
  forall_true_left, imp_self]