The structure and some properties of *τx are discussed in the nonstandard κ-saturated model in this paper. First, a sufficient and necessary condition of a internal set in *τx is given. Then, in κ-saturation, so...The structure and some properties of *τx are discussed in the nonstandard κ-saturated model in this paper. First, a sufficient and necessary condition of a internal set in *τx is given. Then, in κ-saturation, some properties of *τx are proved. Finally, the approach theorem is easily obtained.展开更多
基金Foundation item:the Natural Science Foundation of Shaanxi Province(2007A12)the Basic Research Foundation of Xi'an Arch.&Tech.University(JC0620)the Youth Science Technology of Xi'an Arch.&Tech.University (QN0736)
文摘The structure and some properties of *τx are discussed in the nonstandard κ-saturated model in this paper. First, a sufficient and necessary condition of a internal set in *τx is given. Then, in κ-saturation, some properties of *τx are proved. Finally, the approach theorem is easily obtained.