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 Jul 2 awarded Curious Feb 13 awarded Commentator Feb 13 comment A statement true about compacts but false about closed sets I appreciate all of your answers, several were correct but I choose the one that is (shame on me) redacted with a spark of fun. Feb 13 accepted A statement true about compacts but false about closed sets Feb 12 asked A statement true about compacts but false about closed sets Jan 11 asked Independence of Brownian Motion with respect to a stopping time Nov 30 answered Let $x_n$ be a real sequence. Suppose that there is an a>1 such that $|x_{n+1} -x_n|\le a^{-n}$. Nov 29 accepted $T(B_E)$ is closed for $T$ a bounded linear map Nov 29 comment $T(B_E)$ is closed for $T$ a bounded linear map I'm really sorry but I still don't see how is that weakly compact implies closed. Nov 29 comment $T(B_E)$ is closed for $T$ a bounded linear map Because the weak topology is the weakest topology that makes every lineal function continuous. Nov 28 comment $T(B_E)$ is closed for $T$ a bounded linear map But how do I connect weakly compact with closed? Nov 28 revised $T(B_E)$ is closed for $T$ a bounded linear map added 27 characters in body Nov 28 asked $T(B_E)$ is closed for $T$ a bounded linear map Nov 26 accepted $| |t+1|^p - |t|^p - 1 | \leq k ( |t|^{p-1} + |t| )$ for some $k$ Nov 24 accepted Completion of pre-Hilbert space in H. Brezis' Functional Analysis Nov 23 asked Completion of pre-Hilbert space in H. Brezis' Functional Analysis Oct 26 awarded Teacher Oct 26 answered Modeling the Decay of a Pack of Cannibalistic Hyenas Oct 23 revised Can two planes intersect in a point? improved formatting Oct 23 suggested approved edit on Can two planes intersect in a point?