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- [
`i`]_{i}has infimum 0 but no upper bound. - [1-
`i`]_{i}has supremum 1 but no lower bound. - [1/
`i`+1]_{i}has supremum 1 and infimum 0. - [
`i`^{3}*(-1)^{i}]_{i}has no upper bound and no lower bound.

*Infimum and supremum need not exist.*

Author: Wolfgang Schreiner

Last Modification: December 14, 1999