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| 1. |
Consider f : {1, 2, 3} → { a , b , c } given by f (1) = a , f (2) = b and f (3) = c . Find f −1 and show that ( f −1 ) −1 = f . |
| Answer» Consider f : {1, 2, 3} → { a , b , c } given by f (1) = a , f (2) = b and f (3) = c . Find f −1 and show that ( f −1 ) −1 = f . | |