Sets, Relations and Functions
Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Check
Across:
1.
a ∈ X for an equivalence relation R in X is
the subset of X containing all elements b related to a.
3.
also called onto
4.
both onto&one*-one
5.
also called one-one
Down:
2.
gof(x) = g(f(x)) ∀ x ∈ A.
OK