Proper Subset Relation
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A Proper Subset Relation is a Subset Relation that is False If X1≡X2.
- AKA: Proper Subset, ⊂, ProperSubset, Proper Subset Operation.
- Example(s):
- {1, 2} ⊂ {1, 2, 3}.
- …
- Counter-Example(s):
- {1, 2, 3} ⊆ {1, 2, 3}.
- See: Subset Operation, Intersection Set Operation, Set Equivalence Relation.