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Function Composition
Example
The
identity function
f
(
x
):=
x
is
bijective
:
The
square function
f
(
x
):=
x
2
is
neither
injective
nor
surjective:
The function
f
(
x
):=
x
3
-
x
is
surjective
but not injective:
Author:
Wolfgang Schreiner
Last Modification: December 7, 1999
