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GATE | GATE CS 2019 | Question 43

Consider the following sets:
  • S1: Set of all recursively enumerable languages over the alphabet {0, 1}.
  • S2: Set of all syntactically valid C programs.
  • S3: Set of all languages over the alphabet {0, 1}.
  • S4: Set of all non-regular languages over the alphabet {0, 1}.

Which of the above sets are uncountable?

(A)

S1 and S2

(B)

S3 and S4

(C)

S1 and S4

(D)

S2 and S3

Answer

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