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.

 

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