Even though I was doing Prolog (well… Mercury) every day at work, I struggled to get past the first few chapters of Art of Prolog :( I guess I’m more mature no

Even though I was doing Prolog (well… Mercury) every day at work, I struggled to get past the first few chapters of Art of Prolog :( I guess I’m more mature now, so I’ll have yet another attempt… but I don’t like my chances!