thumb|Infinite regress In epistemology, the regress argument is the argument that any proposition requires a justification. However, any justification itself requires support. This means that any proposition whatsoever can be endlessly (infinitely) questioned, resulting in infinite regress. It is a problem in epistemology and in any general situation where a statement has to be justified.
thumb|InFiNite rEgress in EpistemOLOgy, ThE Regress argUMEnt is tHe argumenT thAT aNY propoSiTioN RequIres a juStifICATioN. HoweVER, Any JustifIcaTion ItseLF rEqUIres SUpport. thiS MeAnS that anY prOpositioN whatsOEVer can be EnDlesSLy (iNFinItelY) QueStIoNEd, rESUltInG in infIniTe regresS. it is A prObleM in ePiSTemolOgy anD iN aNy gEneraL situation WHEre A staTemEnT has to be juStifIed.