English
If S ⊆ T and T is closed, then the closure of S is contained in T; equivalently, the closure operation is monotone with respect to inclusion under a closed bound.
Русский
Если S ⊆ T и T замкнуто, то замыкание S содержится в T; замыкание монотонно по включению с учетом замкнутости.
LaTeX
$$$S \le T \Rightarrow S.topologicalClosure \le T.topologicalClosure$ (and with IsClosed(T): $S.topologicalClosure \le T)$$$
Lean4
theorem topologicalClosure_minimal (s : Submodule R M) {t : Submodule R M} (h : s ≤ t) (ht : IsClosed (t : Set M)) :
s.topologicalClosure ≤ t :=
closure_minimal h ht