Surjective function
Set
| context | $X,Y$ |
| definiendum | $f\in$ it |
| inclusion | $f:X\to Y $ |
| postulate | $\text{im}(f)=Y $ |
Discussion
A function can only be or not be surjective w.r.t. to a stated codomain. A function is always surjective w.r.t. it's own image. See Function for further discussion.
Parents
Subset of
Context
