Subset/Examples/Abstract Example 3
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Example of Subset
Let $A$ denote the set:
- $A := \set {1, 2, 3}$
Let $B$ denote the set:
- $B := \set {\&, 3, +, 1, 2}$
Then:
- $A \subseteq B$
- $A \subseteq A$
- $B \subseteq B$
Sources
- 1993: Richard J. Trudeau: Introduction to Graph Theory ... (previous) ... (next): $2$. Graphs: Sets: Definition $3$