訂正日: 2006/09/29訂正理由: -訂正箇所: 引用文献情報訂正内容: Wrong : 1) G. Birkhoff, Lattice Theory, rev. ed., New York, 1948. 2) K. Takeuchi, On free modular lattices II, Tohoku Math. J., 11 (1959), 1-12. 3) P. M. Whitman, Free lattices, Ann. of Math., 42 (1941), 325-330.
Right : [1] G. Birkhoff, Lattice Theory, rev. ed., New York, 1948. [2] K. Takeuchi, On free modular lattices II, Tohoku Math. J., 11 (1959), 1-12. [3] P. M. Whitman, Free lattices, Ann. of Math., 42 (1941), 325-330.
