The Journal of Symbolic Logic, Volume 9

Volume 9, Number 1, March 1944

• Theodore Hailperin: A Set of Axioms for Logic. 1-19

Volume 9, Number 2, June 1944

• R. L. Goodstein: On the Restricted Ordinal Theorem. 33-41
• J. C. C. McKinsey: On the Number of Complete Extensions of the Lewis Systems of Sentential Calculus. 42-45

Volume 9, Number 3, September 1944

• Frederic Brenton Fitch: Representations of Calculi. 57-62

Volume 9, Number 4, December 1944

• Frederic Brenton Fitch: A Minimum Calculus for Logic. 89-94