Semantic entailment and formal derivability
Series: Mededelingen der Koninklijke Nederlandse Akademie van Wetenschappen.  Afd. Letterkunde. Nieuwe reeks,; deel 18, no. 13
Publisher: Noord-Hollandsche Uitg. Mij.
Published: 1955
Place of publication: Amsterdam
Language: eng
Number of pages: 34
Subjects: Semantics (Philosophy); Logic, Symbolic and mathematical.
Notes: Bibliographical footnotes.
Cover title.
Pages also numbered 309-342.