“subset”的概念、定义、翻译、参考文献-科学参考

subset

Mathematics

The set A is a subset of the set B if every element of A is an element of B. When this is so, A is contained in B, written A ⊆ B, and B contains A, written B ⊇ A. The following properties hold:
1. (i) For all sets A, Ø ⊆ A and A ⊆ A, where Ø denotes the empty set.
2. (ii) For all sets A and B, A = B if and only if A ⊆ B and B ⊆ A.
3. (iii) For all sets A, B and C, if A ⊆ B and B ⊆ C, then A ⊆ C.
See also algebra of sets, power set, proper subset.

Computer

(of a set S) A set T whose members are all members of S; this is usually expressed as
$T \subseteq S$
A subset T is a proper subset of S if there is some element in S that is not in T; this is expressed as
$T \subset S$

单词	subset
释义	subset Mathematics The set A is a subset of the set B if every element of A is an element of B. When this is so, A is contained in B, written A ⊆ B, and B contains A, written B ⊇ A. The following properties hold: (i) For all sets A, Ø ⊆ A and A ⊆ A, where Ø denotes the empty set. (ii) For all sets A and B, A = B if and only if A ⊆ B and B ⊆ A. (iii) For all sets A, B and C, if A ⊆ B and B ⊆ C, then A ⊆ C. See also algebra of sets, power set, proper subset. Computer (of a set S) A set T whose members are all members of S; this is usually expressed as $T \subseteq S$ A subset T is a proper subset of S if there is some element in S that is not in T; this is expressed as $T \subset S$
随便看	country code top level domain country rock Countryside Stewardship Scheme counts couple coupled coupled equations coupled human-environment system coupled substitution coupling coupling constant coupling constraint coupling reaction coupon coupon code coupon-collecting distribution courage Cournand, André Frederic Cournot, Antoin Augustin (1801–77) Cournot competition Cournot duopoly course correction courtesy copy Courtois, Bernard Courtrai, Battle of (11 July 1302)