Question: Fix an integer n 2 and consider the set P = {1, 2, .. n}. Define a partial order < on P such that

Fix an integer n 2 and consider the set P = {1, 2, .. n}. Define a partial order < on P such that for distinct x, y EP, x y if and only if x = 1 and y = 2. (5 points) Find the number of linear extensions of P.

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