Josué Molina
Reputation
1,992
Top tag
Next privilege 2,000 Rep.
 Jul 25 revised The Matrix of $T$ Relative to the Ordered Bases $\mathcal B$ and $\mathcal B'$ for $V$ added 11 characters in body Jul 25 asked The Matrix of $T$ Relative to the Ordered Bases $\mathcal B$ and $\mathcal B'$ for $V$ Jul 25 comment Basis, Ordered Basis, and Linear Independence @SolidSnake, I see. What if it is an ordered basis? Jul 25 asked Basis, Ordered Basis, and Linear Independence Jul 24 comment Matrix Equation: Reduced Row Echelon Form Brilliant! I also see the connection between this and Solid Snake's comment regarding elementary matrices. Jul 24 accepted Matrix Equation: Reduced Row Echelon Form Jul 24 comment Matrix Equation: Reduced Row Echelon Form @Tucker, you are correct for that particular case. Jul 24 asked Matrix Equation: Reduced Row Echelon Form Jul 21 accepted The Mystery of the Número Cabalístico Jul 20 accepted Hestenes' Existence of Extreme Points Jul 20 comment Hestenes' Existence of Extreme Points @user251257 You are right. Thank you for your help. If you write your comments into an answer, then I will accept it. Jul 20 comment Hestenes' Existence of Extreme Points @user251257 I see; the horizontal asymptote is breaking it. Can I still salvage it by requiring that $f (S)$ also be closed? Jul 20 comment Hestenes' Existence of Extreme Points Take $f(x)=x^2$ on $S=(0,\infty)$. Then $\inf_Sf=0$, but there exists no $x_0\in S$ such that $f(x_0)=0$. Jul 20 asked Hestenes' Existence of Extreme Points Jul 16 accepted Dummit & Foote's Abstract Algebra, 3rd Edition, Exercise 0.1.7 Jul 16 asked Dummit & Foote's Abstract Algebra, 3rd Edition, Exercise 0.1.7 Jul 1 awarded Notable Question Jun 15 comment How are basis elements also elements of the topology? +1 It follows by definition. For some reason I thought that I had to demonstrate it. Jun 15 accepted How are basis elements also elements of the topology? Jun 15 asked How are basis elements also elements of the topology?