English
If the distance between seeds is finite, two efixedPoint' values from different forward-invariant contracting contexts agree.
Русский
Если расстояние между начальниками конечное, значения efixedPoint' из разных контекстов совпадают.
LaTeX
$$Equality of efixedPoint' across contexts when seeds are finitely apart.$$
Lean4
/-- The unique fixed point of a contracting map in a nonempty complete metric space. -/
noncomputable def fixedPoint : α :=
efixedPoint f hf _ (edist_ne_top (Classical.choice ‹Nonempty α›) _)