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Real exponential series/Unbounded/Exercise
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Prove that the real function defined by the exponential
exp
:
R
⟶
R
,
x
⟼
exp
x
,
{\displaystyle \exp \colon \mathbb {R} \longrightarrow \mathbb {R} ,x\longmapsto \exp x,}
has no upper limit and that
0
{\displaystyle {}0}
is the infimum (but not the minimum) of the image set.
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