Let (M. d) be a metric space and let {an} and {bn} be two sequences in...
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Let (M. d) be a metric space and let {an} and {bn} be two sequences in M such that lim(n→inifinity) d(an, bn) = 0. Prove the following statements. (a) The sequence {an} is convergent if and only if the sequence {bn} is convergent. (b) The sequence {an) is a Cauchy sequence if and only if {bn} is a Cauchy sequence. Let (M. d) be a metric space and let {an} and {bn} be two sequences in M such that lim(n→inifinity) d(an, bn) = 0. Prove the following statements. (a) The sequence {an} is convergent if and only if the sequence {bn} is convergent. (b) The sequence {an) is a Cauchy sequence if and only if {bn} is a Cauchy sequence.
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