Holocaust denial is the act of denying the Nazi extermination of the Jews in the Holocaust during World War II. Deniers either argue that genocide did not occur, or they minimize it.
Holocaust deniers often defend that the Final Solution was aimed at deporting Jews from the Reich and not mass killing.
Deniers argue that there were no extermination camps or gas chambers. If they admit that there were murders, the claim that the number of Jews murdered was relatively few and that the number of 6 million is greatly exaggerated.
Holocaust denial is not the same as historical revisionism, although deniers hold that it is. It is generally considered an anti-Semitic conspiracy theory.