Subset

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8/24/2026, 10:21:23 AM · Sequoia

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linked exercises~~None~~Cardinal de

\mathcal{P}(E)

8/23/2026, 8:14:56 PM · Ancient Tree

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1A subset is...

1A [[Set|set]] $A$ is a subset of a set $E$ if every element of $A$ also belongs to $E$. We write

2$$

3A \subseteq E.

4$$

7/2/2026, 1:21:50 PM · Ancient Tree

Concept created

A subset is...