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MCQ (Single Correct Answer)
GATE CSE 1996
Which of the following statements is false?
A) The halting problem for Turing machine is un-decidable
B) Determining whether ambiguity a context free grammar is un-decidable
C) Given two arbitrary context free grammars G1 and G2 whether L(G1)=L(G2)
D Given two regular grammars G1 and G2, it is un-decidable whether L(G1)=L(G2)
