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ptolema
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Homework Statement
V is a finite-dimensional vector space over F.
For subspaces W1 and W2 of V, prove that
Homework Equations
V* is dual space of V, defined V*=the set of all linear functionals
For every subset S of V, define annihilator
The Attempt at a Solution
I'm not really sure where to start. I proved in a previous part of the problem that the annihilator is a subspace of V*. I tried to argue that for two subspaces of a vector space, one of the subspaces is a subset of the other, but I don't know if that's even a valid theorem. Could someone shed some light on this?