mathlib

3e72feb3 - feat(ring_theory/localization): The localization of a localization is a localization. (#10456)

feat(ring_theory/localization): The localization of a localization is a localization. (#10456) Also provides an easy consequence : the map of `Spec M⁻¹R ⟶ Spec R` is isomorphic on stalks. Co-authored-by: Andrew Yang <36414270+erdOne@users.noreply.github.com>