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We show that there exists a Tychono? weakly Lindelöf space which does not have the property . This result answers the following open questions. [2] Does a weakly Lindelöf space have the property ? [3] Is there a Tychono? 1-star-Lindelöf space which does not have the property ?

生成讲解博客的中文版本

生成AI智能校验的中文版本