Homework Statement
I'm not sure how to prove that the Gamma function (the extension of the factorial) has the property that Γ(z+1) = zΓ(z).
Homework Equations
Γ(z)=\int_0^\infty t^{z-1} e^{-t}\,{\rm d}t
The Attempt at a Solution
Looking online, I should try integration by parts...