different between subset vs unihan
subset
English
Etymology
sub- +? set.
Pronunciation
- (UK) IPA(key): /?s?b?s?t/
Noun
subset (plural subsets)
- (set theory, of a set S) A set A such that every element of A is also an element of S.
- 1963, David B. MacNeil, Modern Mathematics for the Practical Man, David Van Nostrand, Republished as 2013, David B. MacNeil, Fundamentals of Modern Mathematics: A Practical Review, Dover, page 3,
- In the foregoing example, the set D of the first four letters of the alphabet, was a subset of the set A of all the letters of the alphabet, because A includes all the members of D.
- 1997, Wolfgang Filter, K. Weber, Integration Theory, Chapman & Hall, page 5,
- Let be a subset of the topological space and take .
- 2007, Judith D. Sally, Paul J. Sally, Jr., Roots to Research: A Vertical Development of Mathematical Problems, American Mathematical Society, page 280,
- We say that a set has a finite partition into subsets , if , where the subsets are pairwise disjoint, that is, , if . (We do not require that the subsets be nonempty.)
- 1963, David B. MacNeil, Modern Mathematics for the Practical Man, David Van Nostrand, Republished as 2013, David B. MacNeil, Fundamentals of Modern Mathematics: A Practical Review, Dover, page 3,
- A group of things or people, all of which are in a specified larger group.
Usage notes
- (set theory):
- The subset relation is denoted ? (? for proper subset), and one writes A ? B for "A is a subset of B".
- It is permissible for A to contain no elements: the empty set is a subset of every set (including itself).
Synonyms
- subclass
Antonyms
- superclass
- superset
Derived terms
- proper subset (subset that is strictly less than the given other set)
Translations
Verb
subset (third-person singular simple present subsets, present participle subsetting, simple past and past participle subsetted)
- (transitive) To take a subset of.
- (transitive, computing, typography) To extract only the portions of (a font) that are needed to display a particular document.
subset From the web:
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unihan
unihan From the web:
- what does unihandler emoji mean
- what does unihandler mean
- what does this ???? emoji mean
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