Supremum and infimum
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Find the Supremum (supS) and the infimum (infS) and indicate if supS is in the set S and if infS is in the set S:
S = {r in N: r^2 <= 15}
S = {r in Q: r^2 <= 15)}
S = {[(/1)^n][(n-1)/n]: n in N}
S = {x in R: x^2 + x - 1 < 0}
https://brainmass.com/math/algebra/supremum-and-infimum-26463
Solution Summary
This shows how to find supremum and infimum of sets.
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