Let V and V' be vector spaces over the same field F. A function : V
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Let V and V' be vector spaces over the same field F. A function ∅ : V → V' is a linear transformation of V into V' if the following conditions are satisfied for all α, β ∈ V and a ∈ F:
a. If {βi | i ∈ I} is a basis for V over F, show that a linear transformation ∅ : V → V' is completely determined by the vectors ∅(βi) ∈ V'.
b. Let {βi | i ∈ I} be a basis for V, and let {βi'| i ∈ I} be any set of vectors, not necessarily distinct, of V'. Show that there exists exactly one linear transformation ∅ : V → V' such that ∅(βi)= βi'.
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