why does "find (const True) infinity" work in List.hs

[zichao...@gmail.com]

hello.

I don't know why using "case of" on filtering infinite list doesn't lead the infinity loop. 

I asked a question in StackOverflow, please take a look.

https://stackoverflow.com/questions/55323267/case-of-executing-sequence-wired-in-haskell

Thanks a lot.