three world theory
type: Concept
broader: theories
alternative label: Popperin kolmen maailman teoria @fi
alternative label: Popper's three world theory
in scheme: conceptscheme
preferred label: kolmen maailman teoria @fi
preferred label: tre världar (filosofisk teori) @sv

theories
type: Concept
preferred label: teoriat @fi
preferred label: teorier @sv
narrower: three world theory