Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service.

Some of my selected posts,

A Definition of Differentiable Functions for Arbitrary Topological Spaces

The Formal Definition of Repeated Limit Using Quantifiers

On the Derivative of a Function in Arbitrary Metric Space

Necessary and Sufficient Criteria for a Topolgical Space to be Compact