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What is a set of ordered pairs is called?
A set of ordered pairs is a relation. Or Just simply "Coordinates"
The set of the first numbers of the ordered pairs in a relation?
Usually the set of x values.
Why are tuples in a relation not ordered?
A relation is defined as a set of tuples. Mathematically, elements of a set have no order among them; hence, tuples in a relation do not have any particular order. In other words, a relation is not sensitive to the ordering of tuples. Tuple ordering is not part of a relation definition because a relation attempts to represent facts at a logical or abstract level. Many logical orders can be specified on a relation but there is no preference for one logical ordering over another.
What is the domain of a relation?
It is the set on which the relation is defined to the set which is known as the range.
What is The relation is the set of output values for the relation?
A relation doesn't have an "output value", in the sense that a function does. A set of values is either part of the relation, or it isn't.
What is the set of the first numbers of the ordered pairs in a relation called?
they are the first set of paired elements
What is the best definition of a relation in math?
The relation, between two sets of objects, is a mapping which associates elements of the first set to those of the second set.
What is the largest equivalence relation on a set A?
An equivalence relation on a set is one that is transitive, reflexive and symmetric. Given a set A with n elements, the largest equivalence relation is AXA since it has n2 elements. Given any element a of the set, the smallest equivalence relation is (a,a) which has n elements.
What is relation of elements and subsets?
Elements belong to subsets: subsets contain elements (from the parent set).
What makes a relation a function?
A relation is a mapping from one set to another. It is a function if elements of the first set are mapped to only one element from the second set. So, for example, square root is not a function because 9 can be mapped to -3 and 3.
What is the function of relation domain and range in mathematics?
A relation is a mapping from elements of one set, called the domain, to elements of another set, called the range. The function of the three terms: relation, domain and range, is to define the parameters of a mapping which may or may not be a function.
Why duplicate tuples are not allowed in DBMS?
Since relation is a set, and tuples are element of a set, according to set theory, the elements of a set are not ordered.
How do you determine the number of subsets in relation to the universal set?
If the universal set, U, has N elements then it has 2N subsets.
How do you Derive The Number of Transitive relation of a Set 's' having n elements?
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What is a set of ordered pairs is called?
A set of ordered pairs is a relation. Or Just simply "Coordinates"
How do you Derive The Number of symetric relation of a Set 's' having n elements?
2^(n^2+n)/2 is the number of symmetric relations on a set of n elements.
How many symmetric relations are there on a set with eight elements?
2^32 because 2^(n*(n+1)/2) is the no of symmetric relation for n elements in a given set
