Source: wikibot/von-neumann-bicommutant-theorem
= Von Neumann bicommutant theorem
{wiki=Von_Neumann_bicommutant_theorem}
The von Neumann bicommutant theorem is a fundamental result in the field of functional analysis and operator theory, particularly in the study of von Neumann algebras and von Neumann spaces (which are a type of Hilbert space). The theorem provides a characterization of certain types of operator sets and their closures in the context of weak operator topology.