the answer is complement
This is called the complement of the set.
a set of which all the elements are contained in another set.
The number of elements in a set is called the "cardinality" of the set. It represents the size or count of distinct elements contained within that set. For example, a set containing three elements has a cardinality of three.
A set that is contained within another set is called a subset. For example, if we have a set A = {1, 2, 3} and a set B = {1, 2, 3, 4, 5}, then set A is a subset of set B, written as A ⊆ B. This means that all elements of set A are also elements of set B.
It is the set of all elements we are considering or dealing with in a given problem. We use a capital U or sometimes capital E to mean the universal set. Now take ANY two sets, A and B. If every single element of set A is contained in set B, we say A is a subset of B. The empty set is a subset of every set. Every set in contained in the universal set, so they are all subset of it.
This is called the complement of the set.
a set of which all the elements are contained in another set.
The number of elements in a set is called the "cardinality" of the set. It represents the size or count of distinct elements contained within that set. For example, a set containing three elements has a cardinality of three.
A set that is contained within another set is called a subset. For example, if we have a set A = {1, 2, 3} and a set B = {1, 2, 3, 4, 5}, then set A is a subset of set B, written as A ⊆ B. This means that all elements of set A are also elements of set B.
It is the set of all elements we are considering or dealing with in a given problem. We use a capital U or sometimes capital E to mean the universal set. Now take ANY two sets, A and B. If every single element of set A is contained in set B, we say A is a subset of B. The empty set is a subset of every set. Every set in contained in the universal set, so they are all subset of it.
If the set has n elements then it has 2n subsets.
The concept of a vertex cover in graph theory is related to the concept of a set cover in combinatorial optimization. In a vertex cover, the goal is to find the smallest set of vertices that covers all edges in a graph. In a set cover, the objective is to find the smallest collection of sets that covers all elements in a given universe. Both problems involve finding the minimum number of elements (vertices or sets) needed to cover all the elements (edges or universe) in a system.
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.
A set is a collection of distinct objects, considered as a whole. A subset is a set whose elements are all contained within another set. The universal set is the set that contains all possible elements relevant to a particular discussion or problem. A null set, or empty set, is a set that contains no elements, while a cardinal set refers to the number of elements in a set, indicating its size.
A subset of some set X is, by definition, any set whose elements are entirely contained in X. So the answer is yes. As an example, take your infinite set, and select 3 or 10 or any finite number of your favorite elements in this set. The set of your chosen elements is a finite subset of the infinite set.
union means to group the given sets. where as intersection means to pick out the common elements from the given sets. if set a has 1,2,3 elements and B has 1,2,3,4,5. then its union will have 1,2,3,4,5 as its elements. and its intersection will have 1,2,3 as its elements.
The members of a given set are called "elements" or "members" of that set. For example, if you have a set of numbers, each individual number is considered an element of that set. In mathematical terms, the notation often used is to denote a set with curly brackets, with its elements listed inside.