How to Prove a Function is Surjective | Logic and Proofs
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To prove a function is
To prove a function is surjective we must take an arbitrary element from its codomain and prove its domain has an element which gets mapped to the taken codomain element. We complete three examples of proving a function is a surjection (also called "onto"). #proofs
0:00 Definition of Surjective
0:43 Problem 1
2:33 Problem 2
4:49 Problem 3
8:53 Problem 4
12:36 Recap and Outro
What is a surjective function?: • Surjective Functions (and a Proof!) |...
Logic and Proofs Course: • Logic and Proofs
Logic and Proofs Exercises:
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