the mining cony

Metaknowledge is knowledge about knowledge […] The hallmark of metaknowledge is its being a matter of knowing propositions in which one K[nowledge]-operator occurs within the scope of another. Knowledge about someone's ignorance thus counts as metaknowledge.

And Beaumayns sawe hym and made hym redy / & ther they mette[…]and put their sheldes afore them / & drewe their swerdes / and gaf many grete strokes that somtyme they hurtled to gyder that they felle grouelyng on the ground Thus they fought two houres and more that their sheldes & theyr hauberkes were al forhewen / & in many stedys they were wounded

All counterterms, and thus the betafunctions, can be extracted from the radiative corrections to the two-point functions; the calculation of higher n-point functions then serves as a consistency check of the approach.