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Linear Algebra - Sebastian Pancratz

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V W F α : V → W <br />

v, v1, v2 ∈ V λ ∈ F<br />

α(v1 + v2) = α(v1) + α(v2)<br />

α(λv) = λα(v)<br />

D : D(R) → F (R) = R R f ↦→ f<br />

t<br />

x<br />

0 : C[0, 1] → F [0, 1] f ↦→ x<br />

0 f(t) t <br />

<br />

A m × n α : F n → F m x ↦→ Ax <br />

U, V, W <br />

ιv : V → V, v ↦→ v <br />

U β −→ V α −→ W α, β α ◦ β : U → W <br />

V W F B V α0 : B → W<br />

α : V → W α0 α(v) = α0(v)<br />

v ∈ B<br />

v ∈ V v = λ1v1 + · · · + λnvn vi ∈ B λi ∈ F <br />

α(v) = λiα0(vi) α <br />

V W F α : V → W <br />

V W V → W <br />

F<br />

ιV : V → V <br />

α : V → W α −1 : W → V <br />

U α −→ V β −→ W β ◦ α : U → W

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