Is the Infimum of Set A Equal to Zero?

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SUMMARY

The infimum of the set A, defined as A={1/n | n ∈ Z^+}, is conclusively equal to zero. This conclusion is reached by applying the definition of infimum rather than relying on limits. As n approaches infinity, the values of 1/n approach zero, confirming that zero is indeed the greatest lower bound of the set A.

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  • Understanding of set theory and notation
  • Familiarity with the concept of infimum in real analysis
  • Basic knowledge of limits and convergence
  • Proficiency in mathematical proofs and definitions
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  • Explore examples of sets with different infimum values
  • Learn about the properties of limits and their applications in calculus
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Students of mathematics, particularly those studying real analysis, and anyone interested in understanding the properties of sets and limits.

The Captain
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Homework Statement


Suppose A={[tex]\frac{1}{1}[/tex],[tex]\frac{1}{2}[/tex],...}={[tex]\frac{1}{n}[/tex]|n[tex]\in{Z^+}[/tex]}

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The Attempt at a Solution


Could you take the limit of [tex]\frac{1}{n}[/tex] as [tex]\infty[/tex] to prove this, or would I go about it a different route?
 
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Just use the definition of an infimum. There's no need to invoke limits.
 

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