Видео с ютуба Metric Space

7 уровней метрических пространств

Weird notions of "distance" || Intro to Metric Spaces

Functional Analysis 1 | Metric Space - How to Measure Distances?

Metric Spaces: An Abstraction of "how far?"

Metric Spaces 1: Definition and Examples

Topological Spaces Visually Explained

Метрические пространства

Metric Spaces Introduction, Real Analysis II

Lecture 1: Motivation, Intuition, and Examples