Consider the following Hasse diagram of a partial ordering relation R on a set A?
c d
\ /
b

a
(a) List the ordered pairs that belong to the relation.
(b) Find the (boolean) matrix of the relation.
For the ordered pairs i got the following
(c,b) (c,a) (b,a) (d,b)
But I am unsure how to get the boolean matrix. Can anyone help me?