Consider the relation R = {(p, p), (p, q), (p, r), (p, s), (p, t), (q, q,) (q, s), (q, t), (s, s), (s, t), (r, r), (r, t), (t ,t) which is a subset of A × A where A = {p, q, r, s, t} then which of the following is/are true?
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1
(A, R) is a Boolean Algebra
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2
(A, R) is a complemented lattice
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3
(A, R) is distributed lattice
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4
(A, R) is not a lattice