König's theorem explained

There are several theorems associated with the name König or Kőnig:

• König's theorem (set theory), named after the Hungarian mathematician Gyula Kőnig.
• König's theorem (complex analysis), named after the Hungarian mathematician Gyula Kőnig.
• Kőnig's theorem (graph theory), named after his son Dénes Kőnig.
• König's theorem (kinetics), named after the German mathematician Samuel König.

See also

• Kőnig's lemma (also known as Kőnig's infinity lemma), named after Dénes Kőnig