English
The edistance between two constant functions is bounded above by the distance between their constant values: edist (const a) (const b) ≤ edist a b.
Русский
Эдистанс между двумя константными функциями не превосходит эдистанс между их константами: edist(const a, const b) ≤ edist(a,b).
LaTeX
$$$$ edist (\\text{const}_a) (\\text{const}_b) \\le edist(a,b). $$$$
Lean4
theorem edist_pi_const_le (a b : α) : (edist (fun _ : β => a) fun _ => b) ≤ edist a b :=
edist_pi_le_iff.2 fun _ => le_rfl