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jdm900712
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Homework Statement
Let V be a vector space over the field F. and T [itex]\in[/itex] L(V, V) be a linear map.
Show that the following are equivalent:
a) I am T [itex]\cap[/itex] Ker T = {0}
b) If T[itex]^{2}[/itex](v) = 0 -> T(v) = 0, v[itex]\in[/itex] V
Homework Equations
The Attempt at a Solution
Using p -> (q -> r) <-> (p[itex]\wedge[/itex]q) ->r
I suppose I am T [itex]\cap[/itex] Ker T = {0} and T[itex]^{2}[/itex](v) = 0.
then I know that T(v)[itex]\in[/itex] Ker T and T(v)[itex]\in[/itex] I am T
so T(v) = 0.
I need help on how to prove the other direction.