English
If β is nonempty, the edistance between constant functions equals the distance between the constants: edist (fun _ : β => a) (fun _ : β => b) = edist a b.
Русский
Если β непусто, edist между константными функциями равен edist между константами: edist(постоянная_a, постоянная_b) = edist(a,b).
LaTeX
$$$$ edist (fun _ : \\beta => a) (fun _ : \\beta => b) = edist(a,b). $$$$
Lean4
@[simp]
theorem edist_pi_const [Nonempty β] (a b : α) : (edist (fun _ : β => a) fun _ => b) = edist a b :=
Finset.sup_const univ_nonempty (edist a b)