Media type: Book Title: Principia mathematica : to *56 Contributor: Whitehead, Alfred North [Author]; Russell, Bertrand [Author] imprint: Cambridge: Univ. Pr., 1962 Issue: Repr. Extent: XLVI, 410 S. Language: English RVK notation: SK 130 : Logik und Grundlagen, Metamathematik, Origination: Footnote: