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Le Anh Dung

I desire to gain a solid understanding of Real Analysis, Functional Analysis, Linear Algebra, Abstract Algebra, and Topology.

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Top posts (324) All Questions Answers | Votes Newest

10 Julius König's proof of Schröder–Bernstein theorem Apr 23 '18
8 How to approximate $49^{4}81^{5}$? Mar 16
6 Multiplying inequalities. Jul 15 '18
6 Is it true that every closed set is a countable intersection of open intervals? Feb 20
5 Axiom of Choice implies Well-Ordering Principle Dec 7 '18
5 Confusion about a ring homomorphism theorem in textbook Analysis I by Amann/Escher Apr 13
5 Let $A$ be a set. Define a set B such that $|A|=|B|$ and $A\cap B=\emptyset$ Sep 15 '18
4 Let $(G,\odot)$ be a finite group with identity element $e$. Show that for each $g \in G$, there is $k \in \Bbb N^+$ such that $g^k= e$ Mar 18
4 Is $∅$ proper subset of $\{\{∅\}\}$? Aug 2 '18
4 What makes a linear system of equations “unsolvable”? Jul 2 '18
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