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Exercise 1.42: Let
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f
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and
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g
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be two
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one-argument functions. The
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composition
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f
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after
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g
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is defined
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to be the function
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x
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↦
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f
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(
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g
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(
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x
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)
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)
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. Define a procedure
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compose that implements composition. For example, if inc is a
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procedure that adds 1 to its argument,
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((compose square inc) 6)
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49
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