Volume 48, Number 1, 10 July 1990
: Partition Properties and Well-Ordered Sequences.
Volume 48, Number 2, 16 July 1990
Gregory L. McColm
: Parametrization over Inductive Relations of a Bounded Number of Variables.
Volume 48, Number 3, 31 August 1990
: Exponentiation and Second-Order Bounded Arithmetic.
, Vladimir Yakhnis
: Extension of Gurevich-Harrington's Restricted Memory Determinacy Theorem: A Criterion for the Winning Player and an Explicit Class of Winning Strategies.
Rodney G. Downey
: Corrigendum: Correction to ``Undecidability of L(Finfty) and Other Lattices of r.e. Substructures''.