![[../../00 Asset Bank/Pasted image 20250123171810.png|sepia]] The [[Union]] is a [[Binary Operation]] between two [[Set|Sets]] $A, B$, denoted as $A \cup B$, is the [[Set]] that contains all elements of $A$ and all elements of $B$. $\huge A \cup B = \set{ x \mid x\in A \or x \in B} $ This [[Operation]] is [[Associative]] and [[Commutative]].