bijections
/baɪˈdʒɛkʃənz/
noun
- In mathematics, a function that pairs each element of one set with exactly one element of another set, and every element of the second set is paired with exactly one element of the first set.
- In our math class, we learned that bijections have both the one-to-one and onto properties.
- The computer scientist used bijections to prove that two sets have the same number of elements.
- The teacher explained that bijections are important because they show a perfect matching between two groups.