Show how the list comprehension [(x, y) x

Question

Show how the list comprehension [(x, y)   x<- [1,2], y<-[3,4]] with two generators can be reexpr

Accepted Answer

First, let's break down the original list comprehension:

$[(x, y) quad mathrm{x}<-$ $[1,2], y<-

Show how the list comprehension $[(x, y) \quad \mathrm{x}<-$ $[1,2], y<-[3,4]]$ with two generators can be reexpressed using two comprehensions with single generators. Hint: nest one comprehension within the other and make use of the library function concat :: $[$ [a] ] $\rightarrow[a]$.