# What is a subset in math Activity: Subsets

Feb 14,  · Subsets are a part of one of the mathematical concepts called Sets. A set is a collection of objects or elements, grouped in the curly braces, such as {a,b,c,d}. Oct 26,  · A subset is a set made up of components of another set. Set A is more specifically a proper subset of set C because A does not equal C. In other words, there are some elements in C .

In these lessons, we will learn the concept of subsets and proper subsets and the formula for the number of subsets in a finite set. We can say A is contained in B. The following diagram shows an example of subset. Scroll down the page for more examples and solutions on subsets.

The number of subsets for a finite set A is given by the formula: If set A has n elements, it has 2 n subsets. If set A has n elements, it has 2 n - 1 proper sets. How many subsets and proper subsets will Q have? Example: One trillion is equal to how many crores a Venn diagram to represent the relationship between the sets.

Step 3: Write down the remaining elements in circle B. This video defines and give the notation or symbols used for subsets and proper subsets and shows how to determine the number of possible subsets for a given set.

What is a Subset?

Apr 19,  · Subset. A subset is a portion of a set. is a subset of (written) iff every member of is a member likedatingus.com is a proper subset of (i.e., a subset other than the set itself), this is likedatingus.com is not a subset of, this is written. (The notation is generally not used, since automatically means that and cannot be the same.). The subsets (i.e., power set) of a given set can be found using Subsets. Part of another set. A is a subset of B when every member of A is a member of B. Example: B = {1,2,3,4,5} Then A = {1,2,3} is a subset of B. A set `A` is a subset of another set `B` if all elements of the set `A` are elements of the set `B`. In other words, the set `A` is contained inside the set `B`. The .

We say that A is a subset of B , since every element of A is also in B. This is denoted by:. A Venn diagram for the relationship between these sets is shown to the right. Another way to define a subset is: A is a subset of B if every element of A is contained in B.

Both definitions are demonstrated in the Venn diagram above. We say that X is a subset of Y , since every element of X is also in Y. We say that P is not a subset of Q s ince not every element of P is not contained in Q. For example, we can see that 1 Q. The statement "P is not a subset of Q" is denoted by:. Note that these sets do have some elements in common.

The intersection of these sets is shown in the Venn diagram below. Analysis: Recall that the order in which the elements appear in a set is not important. Looking at the elements of these sets, it is clear that:. Thus A and B are equivalent. Looking at example 5, you may be wondering why the null set is listed as a subset of C. There are no elements in a null set, so there can be no elements in the null set that aren't contained in the complete set.

Therefore, the null set is a subset of every set. You may also be wondering: Is a set a subset of itself? The answer is yes: Any set contains itself as a subset. A subset that is smaller than the complete set is referred to as a proper subset. In example 5, you can see that G is a proper subset of C , In fact, every subset listed in example 5 is a proper subset of C, except P.

Some mathematicians use the symbol to denote a subset and the symbol to denote a proper subset, with the definition for proper subsets as follows:. While it is important to point out the information above, it can get a bit confusing, So let's think of subsets and proper subsets this way:. In example 6, set R has three 3 elements and eight 8 subsets. In example 7, set C has four 4 elements and 16 subsets. To find the number of subsets of a set with n elements, raise 2 to the nth power: That is:.

The number of subsets in set A is 2 n , where n is the number of elements in set A. Subset: A is a subset of B: if every element of A is contained in B.

This is denoted by A B. Sets and subsets: Any set contains itself as a subset. This is denoted by A A. Number of Subsets: The number of subsets in set A is 2 n , where n is the number of elements in set A. Directions: Read each question below. Select your answer by clicking on its button. If you make a mistake, rethink your answer, then choose a different button. Shop Math Games. Skip to main content. Search form Search. This is denoted by: A Venn diagram for the relationship between these sets is shown to the right.

Answer: A is a subset of B. Answer: X is a subset of Y. The statement "P is not a subset of Q" is denoted by: Note that these sets do have some elements in common.

Answer: P is not a subset of Q. The notation for subsets is shown below. Looking at the elements of these sets, it is clear that: Answer: A and B are equivalent. Answer: Subset List all possible combinations of elements This is denoted by: A A. Do you see a pattern in the examples below? How many are there? To find the number of subsets of a set with n elements, raise 2 to the nth power: That is: The number of subsets in set A is 2 n , where n is the number of elements in set A.

Null set: The null set is a subset of every set. Exercises Directions: Read each question below. Which of the following is a subset of set G? Which of the following statements is true? Which of the following is NOT a subset of set A?

How many subsets will the set below have? S is null. None of the above. Introduction to Sets. Basic Set Notation. Types of Sets. Set Equality. Venn Diagrams. Universal Set. Set-Builder Notation. Practice Exercises. Challenge Exercises.

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