4.1. R1
= { (1, 1), (2, 2), (1, 2), (2, 1) }, R2 =
R3 = { (1, 1) }, R4 = { (2, 2) }, R5 = { (1, 2) }, R6 = { (2, 1) },
R7 = { (1, 1), (2, 2) }, R8 = { (1, 1), (1, 2) }, R9 = { (1, 1), (2, 1) },
R10 = { (2, 2), (1, 2) }, R11 = { (2, 2), (2, 1) }, R12 = { (1, 2), (2, 1) },
R13 = { (1, 1), (2, 2), (1, 2) }, R14 = { (1, 1), (2, 2), (2, 1) },
R15 = { (1, 1), (1, 2), (2, 1) }, R16 = { (2, 2), (1, 2), (2, 1) }.
Ανακλαστικές: R1, R7, R13, R14.
Συμμετρικές: R1 – R4, R7, R12, R15, R16.
Μη Μεταβατικές: R12, R15, R16.
Σχέσεις ισοδυναμίας: R1, R7.