English Krein–Milman theorem Cited by user Mgkrupa on 09 Jul 2022 [[Image:Extreme points.svg|thumb|right|Given a convex shape.
English Hahn–Banach theorem Cited by user Mgkrupa on 09 Jul 2022 The Hahn–Banach theorem is a central tool in functional analysis. It allows the extension of bounded linear functionals defined on a subspace of some vector space to the…