Do the same for Exercise 8.47—or, at least, compute the set of hx, xi such that x is the name of a color that’s more blue than red. (You may construct a relation R on colors, and then take R ∩ =.)...

Do the same for Exercise 8.47—or, at least, compute the set of hx, xi such that x is the name of a color that’s more blue than red. (You may construct a relation R on colors, and then take R ∩ =.)

Example 8.16

R ◦
^{S −1}

Exercise 8.47

Let X denote the set of color names from Example 8.16. Define three relations Red, Green, and Blue on X × {0, 1, . . . , 255} such that hx,r, g, bi ∈ C if and only if hx,ri ∈ Red, hx, gi ∈ Green, and hx, bi ∈ Blue.