Let A = {1,2,3}. Then show that the number of relations containing (1,2) and (2,3) which are reflexive and transitive but not symmetric is three.
Please explain this in simple manner.
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https://www.meritnation.com/ask-answer/question/let-set-a-1-2-3-then-show-that-the-number-of-relations-co/relations-and-functions/1791042