venn diagrams
type: Concept
alternative label: DIAGRAMAS DE EULER
broader: boolean algebra
broader: numerical diagrams
preferred label: نمودارهای ون @fa
scope note: DIAGRAMAS DE EULER

numerical diagrams
type: Concept
narrower: venn diagrams
preferred label: نمودارهای عددی @fa

boolean algebra
type: Concept
narrower: venn diagrams
preferred label: جبربولی @fa