Subset

Concept history

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5 revisions

Revision 4741

9/13/2026, 7:40:50 AM · Ancient Tree

Added exercise "Reconnaître un sous-ensemble"

linked exercises~~Cardinal de $\mathcal{P}(E)$ , Des exemples de sous-ensemble ?~~Cardinal de

\mathcal{P}(E)

, Des exemples de sous-ensembles ?, Reconnaître un sous-ensemble

9/13/2026, 7:37:30 AM · Ancient Tree

Added exercise "Des exemples de sous-ensemble ?"

linked exercises~~Cardinal de $\mathcal{P}(E)$~~ Cardinal de

\mathcal{P}(E)

, Des exemples de sous-ensemble ?

8/24/2026, 10:21:23 AM · Sequoia

Shared settings updated from fr translation

linked exercises~~None~~Cardinal de

\mathcal{P}(E)

8/23/2026, 8:14:56 PM · Ancient Tree

Updated text

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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...