I believe the title is a reference to "Theorems for free", a somewhat well known paper. https://ecee.colorado.edu/ecen5533/fall11/reading/free.pdf https://ecee

I believe the title is a reference to "Theorems for free", a somewhat well known paper. https://ecee.colorado.edu/ecen5533/fall11/reading/free.pdf https://ecee.colorado.edu/ecen5533/fall11/reading/free.pdf