Suppose that the domain of Q(x, y, z) consists of triples x, y, z, where x = 0, 1, or 2, y = 0 or 1, and z = 0 or 1. Write out these propositions using disjunctions and conjunctions.
a) ∀y Q(0, y, 0)
b) ∃x Q(x, 1, 1)
c) ∃z - Q(0, 0, z)
d) ∃x - Q(x, 0, 1)