# when two sets are equal

Are the two sets equivalent? Explain your answer. They are indicated with brackets: { }. Each element of P are in Q and each element of Q are in P. Each element of P are in Q and each element of Q are in P. The order of elements in a set is not important. If the sets are equal, they have the exact same elements in them. In this case, Set E contains three faces. A set's cardinality is the number of elements in the set. 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Visit the High School Algebra I: Homework Help Resource page to learn more. If P = {1, 3, 9, 5, −7} and Q = {5, −7, 3, 1, 9,}, then P = Q. When we have two sets that have the exact same elements, we call them equal sets. Not sure what college you want to attend yet? courses that prepare you to earn Definition 2: Two sets A and B are said to be equivalent if they have the same cardinality i.e. Two sets A and B can be equal only if each element of set A is also the element of the set B. lessons in math, English, science, history, and more. It just matters that the same elements are in each set. How Do I Use Study.com's Assign Lesson Feature? Sets are collections of numbers, letters, words, or pictures. Erica and Tessa are both given a swag bag at a fashion show they are attending. Also, the order doesn’t matter for the elements in a set. In this article, we are going to discuss what is meant by equal and equivalent set with examples and also the difference between them. Show the sets A and B. b. Compute Acup B and |Acup B|. Why or why not? succeed. Let R be the relation on the set of ordered pairs of positive integers such that ((a,b),(c,d)) is an element of set R if and only if ad=bc. Your email address will not be published. Laura and Tristyn both have $4. An example is shown here: {1, 2, 3, 4, 5, 6. . Questions: Jamie and Grace go shopping. The set of Laura's currency is not equal to the set of Tristyn's currency, because they have different types of currency that add up to$4. Anyone can earn We would write this as: Set A ~ Set B. 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That makes them equivalent sets! flashcard set{{course.flashcardSetCoun > 1 ? Create your account. A set is a collection of elements that are usually related. If we say that the cardinality of set A is equal to the cardinality of set B, we are saying that sets A and B are equivalent, in that they both have the same number of elements. So if we wanted to say that set C was equivalent to set D, we would write: Set C ~ Set D. Get access risk-free for 30 days, Based on your answers to these questions, do you think that all equivalent sets are also equal sets? {{courseNav.course.mDynamicIntFields.lessonCount}} lessons a. A_1=ninZ :n 0 A_2=ninZ :n 0 b. B_1=ninZ :n=2k, for some in, Using Warshall's algorithm, compute the reflexive-transitive closure of the relation below. The set is usually represented by the capital letter. We can have a set containing numbers, words, or even pictures. Let's take a look at some examples: Even though Sets A and B have completely different elements (Set A comprises letters, and Set B comprises months of the year), they have the same amount of elements, which is five. Earn Transferable Credit & Get your Degree, Cardinality & Types of Subsets (Infinite, Finite, Equal, Empty), Universal Set in Math: Definition, Example & Symbol, The Empty Set in Math: Definition & Symbol, Complement of a Set in Math: Definition & Examples, Union of Sets in Math: Definition, Terms & Symbol, How to Write Sets Using Set Builder Notation, Introduction to Groups and Sets in Algebra, Venn Diagrams: Subset, Disjoint, Overlap, Intersection & Union, The Algebra of Sets: Properties & Laws of Set Theory, What Are Venn Diagrams in Math? It is also noted that no matter how many times an element is repeated in the set, it is only counted once. © copyright 2003-2020 Study.com. It does not matter what order the elements are in. Explain. M_{R_1}= \begin{bmatrix} 0&1&0\\ 1&1&1\\ 1&0&0 \end{bmatrix} and M_{R_2}= \begin{bmatrix} 0&1&0\\ 0&1&1\\ 1&1&1 \end{bmatrix} Find.