Recursion theorem
While studying for the course formal languages and automata I did use the excellent videos from Shai Simonson as an extra help.
In his last video he talks about the recursion theorem and gives an example in … LOGO.
It took me down the memory lane, where I was programming as a little kid on an old V-Tech Laser 310 computer in LOGO.
Oh the good ol’ days!
And now here I am, programming in LOGO again;-)