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- 30. Prove statement of Theorem : for all integers .arrow_forwardLet R be the set of all infinite sequences of real numbers, with the operations u+v=(u1,u2,u3,......)+(v1,v2,v3,......)=(u1+v1,u2+v2,u3+v3,.....) and cu=c(u1,u2,u3,......)=(cu1,cu2,cu3,......). Determine whether R is a vector space. If it is, verify each vector space axiom; if it is not, state all vector space axioms that fail.arrow_forwardIn Exercises , prove the statements concerning the relation on the set of all integers. 18. If and , then .arrow_forward
- 13. Consider the set of all nonempty subsets of . Determine whether the given relation on is reflexive, symmetric or transitive. Justify your answers. a. if and only if is subset of . b. if and only if is a proper subset of . c. if and only if and have the same number of elements.arrow_forwardProve that if f is a permutation on A, then (f1)1=f.arrow_forward6. Prove that if is a permutation on , then is a permutation on .arrow_forward
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