paradox holiče

O tom, co to je paradox holiče, co to vlastně je paradox, a jak si matematika poradila s paradoxem pana Russella.

Reference:
By ESO/C. Malin – http://www.eso.org/public/images/potw1414a/, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=32084731