Question: 2. Language Theory: a. How many distinct prefixes does the string ababba have? b. Given 1 = {, , } and 2 = {, },

2. Language Theory: a. How many distinct prefixes does the string ababba have? b. Given 1 = {, , } and 2 = {, }, enumerate the first 6 values of 1 2^ in lexicographic order c. What set of languages is a subset of decidable languages and a superset of regular languages? d. Does =

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