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Let A= (1,2,3,4) and Ra relations on A whose matrices is i01 11 01111 Me= 0 0 111 00011 0 0 0 0 1

Let A= (1,2,3,4) and Ra relations on A whose matrices is i01 11 01111 Me= 0 0 111 00011 0 0 0 0 1 A) Show that (A, R) is a poset (4 pts) B) Draw the Hasse diagram (3 pts) C) Find maximal, minimal, least and greatest if they exist (4 pts)

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