EMSTAPOLBA Q.9

0. A partial order is deined on the set

S = {x, a₁, a₂, a₃,...... a_n, y}

as x ≤ a i for all i and a_i ≤ y for all i, where n ≥ 1.

Number of total orders on the set S which contain partial order ≤ is

Answer
Comment
Array

Option : D
Explanation :

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