Subset

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Dictionary Meaning and Definition on 'Subset'

Subset Meaning and Definition from WordNet (r) 2.0
    subset n : a set whose members are members of another set; a set contained within another set
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Wikipedia Meaning and Definition on 'Subset'


In mathematics, especially in set theory, a set A is a subset of a set B if A is "contained" inside B. A and B may coincide. The relationship of one set being a subset of another is called inclusion or sometimes containment. Correspondingly, set B is a superset of A since all elements of A are also elements of B.

If A and B are sets and every element of A is also an element of B, then:

If A is a subset of B, but A is not equal to B (i.e. there exists at least one element of B not contained in A), then

For any set S, the inclusion relation ⊆ is a partial order on the set of all subsets of S (the power set of S).

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'Subset' in famous quotation sentence


* It's counter to common sense, but common sense is only based on a very small subset of the universe. - Ian J. Davenport


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Subset Sample Sentences in News


  • Some astronauts at risk for cognitive impairment, animal studies suggest
    Rats exposed to high-energy particles, simulating conditions astronauts would face on a long-term deep space mission, show lapses in attention and slower reaction times, even when the radiation exposure is in extremely low dose ranges, new research shows. The cognitive impairments — which affected a large subset, but far from all, of the animals — appear to be Read more on this news related to 'Subset'
  • Anti-Hepcidin Spiegelmer® Lexaptepid Pegol Increases Hemoglobin in Subset of Anemic Patients in Pilot Phase IIa Study
    NOXXON Pharma announced that data from a Phase IIa pilot study in anemic cancer patients treated with lexaptepid pegol will be presented today at the annual meeting of th Read more on this news related to 'Subset'
  • US recommends aspirin for some pregnant women
    A small subset of pregnant women could benefit from taking low-dose aspirin to prevent the potentially life-threatening complication called pre-eclampsia, US health authorities said Tuesday. Read more on this news related to 'Subset'

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