Set Theory Symbol Quiz

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10 Questions

Which one of the following symbols represents the union of sets?

$\cup$

Which one of the following symbols represents the intersection of sets?

$\cap$

Which one of the following symbols represents the difference of sets?

$\setminus$

Which one of the following symbols represents a subset relationship between sets?

$\subseteq$

Which one of the following symbols represents a superset relationship between sets?

$\subseteq$

Set $A$ contains the elements {1, 2}, and set $B$ contains the elements {2, 3}. The union of sets $A$ and $B$ is equal to

{1, 2, 3}

If sets $A_1$, $A_2$, and $A_3$ are defined as $A_1={a,b,c}$, $A_2={c,h}$, $A_3={a,d}$, then the union of sets $A_1$, $A_2$, and $A_3$ is equal to

${a,b,c,d,h}$

The union of sets $A$ and $B$ is shown by the shaded area in the Venn diagram. If the union of sets $A$ and $B$ is equal to set $B$ union set $A$, then it follows that

$A \cup B = B \cup A$

The complement of set $A$ is defined as the set of elements that are not in set $A$. If the complement of set $A$ is denoted as $A'$, then the expression $(x \in A')$ is equivalent to

$(x \notin A)$

The union of three or more sets can be defined using the symbol $\bigcup$. For example, if $A_1$, $A_2$, $A_3$ are $n$ sets, their union $A_1 \cup A_2 \cup A_3 \cdots \cup A_n$ can be written more compactly as

$\bigcup_{i=1}^{n} A_i$

Test your knowledge of set theory symbols with this quiz. Challenge yourself to identify and understand the various symbols used in set theory, from intersection to subset. Perfect for math enthusiasts and students looking to strengthen their understanding of set theory.

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