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IEVref: | 102-01-05 | ID: | |

Language: | en | Status: Standard | |

Term: | proper subset | ||

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Symbol: | |||

Definition: | subset of a set, which is different from the set Note 1 to entry: The notation $A\subset B$ expresses that the set | ||

Publication date: | 2008-08 | ||

Source: | |||

Replaces: | |||

Internal notes: | 2017-02-20: Editorial revisions in accordance with the information provided in C00019 (IEV 102) - evaluation. JGO | ||

CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

Domain1: | |||

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Domain5: |

Note 1 to entry: The notation $A\subset B$ expresses that the set *A* is a proper subset of the set *B*. The symbol $\underset{\ne}{\subset}$ is sometimes used instead of $\subset $ but is not recommended, and it should be used when the latter is used for any subset of *B*. *A* is also said to be properly included in *B*.