New posts in continuity

Continuity of derivative of convex function

$f:[0,2\pi]\rightarrow$ {$(x,y):x^2+y^2=1$} by $f(\theta)=(\cos\theta,\sin\theta)$ is a closed map

Given a continous real function, it is almost globally Lipschitz:

Example of topological spaces where sequential continuity does not imply continuity

Derivative of floor function using epsilon/delta

A continuous function that attains neither its minimum nor its maximum at any open interval is monotone

Need Help : Proving polynomials are continuous, without circular reasoning

Why is/isn't the derivative of a differentiable function continuous?

How can I show that this strange function is continuous at irrational points?

How discontinuous can the limit function be?

Graph of continuous function from compact space is compact.

Problem 12 at Section 5.3 in Bartle and Sherbert's books on Real Analysis

Is there a discontinuous function such that it is continuous on each restriction?

Example of a function continuous at only one point. [duplicate]

Show that the supremum of a collection of lower semicontinuous function is lower semicontinuous

Multivariate Weierstrass theorem?

Where is the error in my proof that all derivatives are continuous?

How to prove continuity of $e^x$.

Is it really true that "if a function is discontinuous, automatically, it's not differentiable"? [duplicate]

Cardinality of set of all everywhere-discontinuous functions