R = {1, 4, 9, 16, 25, 36, 49, 64, 81}
No. 6 is less than 1239 so it cannot be divisible by it. Nor is 1239 divisible by 6: all multiples of 6 are even but 1239 is odd, so it cannot be divisible by 6.
Basically two ways: either by listing all the elements, or by specifying some rule for elements to be included. Listing all the elements only makes sense for finite sets.
Name of the set which contains all elements is UNIVERSAL SET. It is usually represented by (U)
A unit set contains all the elements under consideration.
If all the elements in set A are also elements of set B, then set A is a subset of set B.
A proper subset B of a set A is a set all of whose elements are elements of A nad there are elements of A that are not elements of B. It follows, then, that an improper subset must be the whole set, A. That is, A is an improper subset of A
A set is a collection of well defined objects known as elements Opperatons of sets are 1)union - the union of sets A and B is the set that contains all elements in A and all elements in B. intersection - given two sets A and B, the intersection of A and B is a set that contains all elements in common between A and B. compliments - given set A, A compliment is the set of all elements in the universal set but not in A difference - A-B is a set containing all elements in A that are not in B. symmetric difference - it is the sum of A and B minus A intersection B.
They are collections of some, or all, of the elements of the set. A set with n elements will have 2^n subsets.
If you have a set S, the only improper subset of S is S itself. An improper subset contains all elements of S and no others. It is therefore equivalent to S. For example if S ={1,2,3} then the improper subset is {1,2,3}, and an example proper subset is {1,2}.
false, because the complement of a set is the set of all elements that are not in the set.
Binary relationship, relationship set with abbreviated name, and ternary relationship set are the different kinds of sets. A binary relationship in math terms means that there are ordered pairs.
The universal set.