论文标题
一个非常紧凑的拓扑组,具有非脑子pracoct Square
A countably compact topological group with the non-countably pracompact square
论文作者
论文摘要
在马丁的公理下,我们构建了一个布尔值,可计数紧凑的拓扑群,其正方形并非次数。
Under Martin's Axiom we construct a Boolean countably compact topological group whose square is not countably pracompact.