The answers to exercises marked [BB] can be found in the Back of the Book.
With a table like that in Fig. 2.2, illustrate a relation on the set {a, b, c, d} that is
(a) [BB] reflexive and symmetric
(b) not symmetric and not antisymmetric
(c) not symmetric but antisymmetric
(d) transitive
Include at least six elements in each relation.
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