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OpenStudy (anonymous):
An injective funtion Z + Z -> Z heeelllpppp
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OpenStudy (anonymous):
what's the question?
OpenStudy (anonymous):
give an example.
OpenStudy (anonymous):
f(x)=x+1 for x belong to Z
OpenStudy (anonymous):
is Z+Z -> Z same thing as Z -> Z
OpenStudy (anonymous):
is Z+Z -> Z same thing as Z -> Z
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
thk you.
OpenStudy (anonymous):
yw
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