Let $S = (0, 1)$ and define the partial order relation R on $S X S$ as follows:
((a, b) R (c, d) if (a < c) $\wedge$ (a = c $\wedge$b <= d))
Consider the following preposition:
$S_1$: R is not lattice.
$S_2$: R is not complemented lattice but lattice
$S_3$: R is complemented lattice.
Which of the following statements is correct?
- Only s1
- Only s2
- Only s3