Give an example of 4 non-empty sets, A, B, C and D such that all the following are true: A ∩ B ̸ = ∅, C ∩ D = ∅ B ∈ C, A ∈ D B ⊆ C, A ̸ ⊂ D A ⊆ N, B ⊆ N i. Write the sets out explicitly in terms of the elements, i.e., do not write “A”, “B” as members of any of the sets. ii. After writing the sets out, show that each of the conditions are satisfied with brief explana- tions where appropriate.
Give an example of 4 non-empty sets, A, B, C and D such that all the following are true: A ∩ B ̸ = ∅, C ∩ D = ∅ B ∈ C, A ∈ D B ⊆ C, A ̸ ⊂ D A ⊆ N, B ⊆ N i. Write the sets out explicitly in terms of the elements, i.e., do not write “A”, “B” as members of any of the sets. ii. After writing the sets out, show that each of the conditions are satisfied with brief explana- tions where appropriate.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.2: Mappings
Problem 21E: In Exercises 20-22, Suppose and are positive integers, is a set with elements, and is a set...
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Give an example of 4 non-empty sets, A, B, C and D such that all the following are true:
A ∩ B ̸ = ∅, C ∩ D = ∅
B ∈ C, A ∈ D
B ⊆ C, A ̸ ⊂ D
A ⊆ N, B ⊆ N
i. Write the sets out explicitly in terms of the elements, i.e., do not write “A”, “B” as members
of any of the sets.
ii. After writing the sets out, show that each of the conditions are satisfied with brief explana-
tions where appropriate.
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