Question: Let G = ( V , T , S , P ) be a context - free grammar such that every one of its productions

Let G=(V,T,S,P) be a context-free grammar such that every one of its productions is of the form
Av, with |v|=k>1. Show that the derivation tree for any winL(G) has a height h such that
logk|w|h(|w|-1)k-1.
Let G=(V,T,S,P) be a context-free grammar such that every one of

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