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 Mar12 asked Proof of Banach's homeomorphism theorem without the contraction map principle. Mar12 revised Inverse Function Theorem. On the classical method of proof. added 37 characters in body Mar12 revised Inverse Function Theorem. On the classical method of proof. Tag's and references. Mar6 comment Inverse Function Theorem. On the classical method of proof. @Siminore No. I had not seen this issue in MathOverflow. The answer ultimately lead me to references I've consulted. Thanks anyway. +1. Mar6 revised Inverse Function Theorem. On the classical method of proof. added 3 characters in body Mar6 asked Inverse Function Theorem. On the classical method of proof. Mar6 revised evaluation the integral deleted 10 characters in body Mar5 revised Real analysis book suggestion added 3 characters in body Feb28 revised Matrix convexity! edited tags Feb25 revised Real analysis book suggestion added 132 characters in body Feb23 revised Prove the following based on the triangle inequality edited tags Feb15 reviewed Approve Finding the value of the infinite sum $1 -\frac{1}{4} + \frac{1}{7} - \frac{1}{10} + \frac{1}{13} - \frac{1}{16} + \frac{1}{19} + …$ Feb15 reviewed Reject GCD(a,m)>1 implies ax=1(mod m) has no solution Feb15 reviewed Reject Intersection of line with discrete hypercubes in n-dimensional space Feb12 comment Pseudo Proofs that are intuitively reasonable @user4205580 See math.stackexchange.com/questions/239278/puzzle-on-the-triangle Feb12 reviewed Reject Calculus inequality (easy) Feb10 reviewed Looks OK Matrix equation - find $a,b,c,d$ Feb10 revised Matrix equation - find $a,b,c,d$ Improviment of LaTeX code. Feb10 reviewed Reject Can a sequence be called convergent/divergent if it has finite number of terms? Feb8 revised Limit solving without using L'Hopital rule added 33 characters in body