Surjective map
Concept history
A revision trail for this concept page.
Revision 2656
8/29/2026, 3:42:36 PM · Catalpa
Updated text
Compare with revision 2495 changed lines
1
A surjective map is...1
A surjective map is a map which has an antecedent for each element of its set of destination.2
3
##### Formal definition4
If $f: E \rightarrow F$, for all $y \in F$, $\exists x \in E$ such as $f(x)=y$.Revision 249
7/7/2026, 9:05:20 AM · Ancient Tree
Concept created
A surjective map is...