There is not much actual hands-on programming in this show. For example, for a simple function of abs, I could not figure out how to define it in Hugs. I notice that my Hugs has abs predefined already for using. Then I tried to type in:
abs1 n = n, n >=0
I got error and could not coninue the next branch. I guess I have to edit my script and load it. How?