Subset/Examples/Abstract Example 2
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Example of Subset
Let $A$ denote the set:
- $A := \set {\dfrac 1 2, 1, \sqrt 2, e, \pi}$
Let $C$ denote the set:
- $C := \set {x \in \R: x > 0}$
Then:
- $A \subseteq C$
Sources
- 1977: K.G. Binmore: Mathematical Analysis: A Straightforward Approach ... (previous) ... (next): $\S 1$: Real Numbers: $\S 1.1$: Set Notation