2. Let f : X → Y be onto. For each b e Y, let A, {As : b € Y} is a partition of X. f6]. Prove that

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Chapter2: Second-order Linear Odes
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2. Let f : X → Y be onto. For each b e Y, let A, := f-'[b]. Prove that
{Ab : b EY} is a partition of X.
Transcribed Image Text:2. Let f : X → Y be onto. For each b e Y, let A, := f-'[b]. Prove that {Ab : b EY} is a partition of X.
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