a. Let C be a context-free language and R be a regular
Chapter , Problem 2.18(choose chapter or problem)
a. Let C be a context-free language and R be a regular language. Prove that the language C R is context free. b. Let A = {w|w{a,b,c}and w contains equal numbers of as, bs, and cs}. Use part (a) to show that A is not a CFL.
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