2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/167421We shall present examples of Schauder bases in the preduals to the hyperfinite factors of types $\hbox{II}_1$, $\hbox{II}_\infty$, $\hbox{III}_λ$, $0 < λ\leq 1$. In the semifinite (respectively, purely infinite) setting, these systems form Schauder bases in any associated separable symmetric space of measurable operators (respectively, in any non-commutative $L^p$-space).18 pagesOperator AlgebrasFunctional AnalysisThe Haar system in the preduals of hyperfinite factorstext