Answer to Question #38166 in Math for Sujata Roy

Question #38166

Consider the languages
L1= {a^n b^n c^m | n,m > 0} and L2= {a^n b^m c^m | n,m > 0}

(A) L1 intersection L2 is a context-free language
(B) L1 union L2 is a context-free language
(C) L1 and L2 are context-free language
(D) L1 intersection L2 is a context sensitive language

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