• ## Puckcake

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• ### Recent Forum Posts

#### Re: Continuity of f^+ ... Browder Corollary 3.13

To prove $\displaystyle f^+$ is continuous at $\displaystyle x_0$ consider 3 cases:
1) $\displaystyle f(x_0)> 0$.
2) $\displaystyle f(x_0)= 0$.
3) $\displaystyle f(x_0)< 0$.

Since f is continuous,

HallsofIvy Today, 08:21

#### Continuity of f^+ ... Browder Corollary 3.13

I am reading Andrew Browder's book: "Mathematical Analysis: An Introduction" ... ...

I am currently reading Chapter 3: Continuous

Peter Today, 02:48

#### Re: Relatively Open Sets ... Stoll, Theorem 3.1.16 (a) ...

Yes, this is correct. Nicely done.

GJA Yesterday, 22:26

#### Re: XenForo style final feedback - volunteers wanted!

Update - we are very close to being done! New software is up and running on a test environment and we are able to import MHB's historical posts. There

Jameson Yesterday, 09:29

#### Maximum area of rectangle which circumscribes the given quadrilateral.

Suppose, a rectangle circumscribes a quadrilateral having length of diagonals p and q, and area A.

What is the maximum area of rectangle

Dhamnekar Winod Yesterday, 08:42