Question: What are the equivalence classes of the bit strings in Exercise 30 for the equivalence relation R4 from Example 5 on the set of all

What are the equivalence classes of the bit strings in Exercise 30 for the equivalence relation R4 from Example 5 on the set of all bit strings? (Recall that bit strings s and t are equivalent under R4 if and only if they are equal or they are both at least four bits long and agree in their first four bits.)

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