X-is-a-topological-space-and-A-X-A-F-A-F-F-is-closed-set- Tinku Tara June 4, 2023 Differentiation 0 Comments FacebookTweetPin Question Number 161136 by mnjuly1970 last updated on 12/Dec/21 ≺X,τ≻isatopologicalspaceandA⊆X,A−=?∩F⊃AF(Fisclosedset) Answered by mindispower last updated on 12/Dec/21 A⊂F,notemptysetA−∈{A⊂F,Fisclosedset}A∈∩A⊂FF⇒A−∈closed(∩A⊂FF)=∩A⊂FFF−=FsinceFisclosed(2)A⊂F,nowletsusedthatA−isthesmallestclosedsetthatcontientAA⊂A−,∩A⊂FF=A−∩(∩A⊂F−{A−}F)⊂A−…(2)(1)nd(2)⇒A−=∩A⊂FF Commented by mnjuly1970 last updated on 13/Dec/21 greatsirpowerbravo… Answered by mindispower last updated on 12/Dec/21 more/quationlikethissirpleasemorphisummodularGroups Terms of Service Privacy Policy Contact: info@tinkutara.com FacebookTweetPin Post navigation Previous Previous post: Question-161139Next Next post: Question-161146 Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Save my name, email, and website in this browser for the next time I comment.