Give a recursive definition of the reversal of a string.
Chapter 5, Problem 35E(choose chapter or problem)
Problem 35E
Give a recursive definition of the reversal of a string. [Hint: First define the reversal of the empty string. Then write a string w of length n + 1 as xy, where x is a string of length n, and express the reversal of w in terms of xR and y.]
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