Ivan Shishkin, Birch Grove

Proper subset

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Revision 410

7/10/2026, 9:17:13 PM · Ancient Tree

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1A proper subset is...
1A [[Subset|subset]] $A$ of a set $B$ is said to be proper if it is different from $B$.

Revision 345

7/8/2026, 9:59:24 AM · Ancient Tree

Concept created

A proper subset is...