or (2) a = c and {b,d} = {0,1}. The relation is an equivalence relation, and you can use
that fact in your reasoning for this problem.
(a) For each point of X provided, list all of the points in X that relate to it via ~. (None of
these lists are infinite or even very long.) i. (). (0,0) iii. (,0) iv. (1,1)
(b) Take a square piece of paper, label several points on it so that you can pretend the paper
represents X. Use tape to overlay the points that relate via~. What is the resulting
shape?