and Z Λ is really independent of Λ! We have used the condensed deWitt notation here. We have also split the bare action S Λ into a quadratic kinetic part and an interacting part S int Λ. This split most certainly isn't clean. The "interacting" part can very well also contain quadratic kinetic terms. In fact, if there is any wave function renormalization, it most certainly will. This can be somewhat reduced by introducing field rescalings. R Λ is a function of the momentum p and the second term in the exponent is