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1Nihon-teki hōishikiron saikō: jidai to hō no haikei o yomuMineruva Shobō. 2002.時代と法の背景にある意識の連関を再検証.
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7Sigma-short Boolcan algebrasMathematical Logic Quarterly 49 (6): 543. 2003.We introduce properties of Boolean algebras which are closely related to the existence of winning strategies in the Banach‐Mazur Boolean game. A σ‐short Boolean algebra is a Boolean algebra that has a dense subset in which every strictly descending sequence of length ω does not have a nonzero lower bound. We give a characterization of σ‐short Boolean algebras and study properties of σ‐short Boolean algebras. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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24Σ-short Boolean algebrasMathematical Logic Quarterly 49 (6): 543-549. 2003.We introduce properties of Boolean algebras which are closely related to the existence of winning strategies in the Banach-Mazur Boolean game. A σ-short Boolean algebra is a Boolean algebra that has a dense subset in which every strictly descending sequence of length ω does not have a nonzero lower bound. We give a characterization of σ-short Boolean algebras and study properties of σ-short Boolean algebras
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33On L∞κ-free Boolean algebrasAnnals of Pure and Applied Logic 55 (3): 265-284. 1992.We study L∞κ-freeness in the variety of Boolean algebras. It is shown that some of the theorems on L∞κ-free algebras which are known to hold in varieties such as groups, abelian groups etc. are also true for Boolean algebras. But we also investigate properties such as the ccc of L∞κ-free Boolean algebras which have no counterpart in the varieties above