C
Cantor
PersonPioneer who showed that infinite sets can have different sizes and introduced the diagonal argument; foundational to the concept of uncountability.
Mentioned in 2 videos

Infinity, Paradoxes, Gödel Incompleteness & the Mathematical Multiverse | Lex Fridman Podcast #488
Lex Fridman
Pioneer who showed that infinite sets can have different sizes and introduced the diagonal argument; foundational to the concept of uncountability.

Math's Fundamental Flaw
Veritasium
Central figure in the development of set theory and infinity concepts.