[[Presuppositional apologetics]] is "a branch of Christian apologetics that deals with presuppositions."<ref>[http://www.carm.org/apologetics/presuppositional.htm ''Presuppositional Apologetics''] CARM. 5 May 2008</ref> Presuppositional apologetics is frequently used to rebut [[atheism ]](see: [[Atheism and presuppositional apologetics]]).