Questions: The symbol ∈ means "is an element of" and the symbol ⊆ means "is a subset of." For example, ∈1,2, 3 and ⊆1,2,3.

The symbol ∈ means "is an element of" and the symbol ⊆ means "is a subset of." For example, ∈1,2, 3 and ⊆1,2,3.
Transcript text: The symbol $\in$ means "is an element of" and the symbol $\subseteq$ means "is a subset of." For example, $\in\{1,2$, $3\}$ and $\subseteq\{1,2,3\}$.
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Solution

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Solution Steps

The given text is not a math question but rather an explanation of mathematical symbols. Please provide a specific math question for me to outline the solution approach and generate Python code.### Step 1: Understanding the Symbols The problem introduces two mathematical symbols:

  • The symbol \(\in\) means "is an element of."
  • The symbol \(\subseteq\) means "is a subset of."
Step 2: Examples Provided

The problem provides examples to illustrate the use of these symbols:

  • \(\square \in \{1, 2, 3\}\) means that \(\square\) is an element of the set \(\{1, 2, 3\}\).
  • \(\square \subseteq \{1, 2, 3\}\) means that \(\square\) is a subset of the set \(\{1, 2, 3\}\).

Final Answer

The problem is a definition and example of the symbols \(\in\) and \(\subseteq\). There is no calculation or further steps required. The provided examples are correct and illustrate the meaning of the symbols clearly.

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