Vopěnka

From APIDesign

Petr Vopěnka is a Czech mathematician, author of The Key Stone of Europian Knowledge and many other books as well as theories (including [[wikipedia:Alternative_Set_Theory|Alternative Set Theory).

He was a professor at Charles University when I studied there, but he never thought me and my colleagues directly, as we were just computer science graduates and it was enough to give us basics of TEMNO.