Null productions are of the form A e lf L is CFL generated by a CFG having A productions, then there is a different CFG that has no A production and still generates either the whole language L (if L does not include A) or else generate the language of all the words in L other than A Remove A produ...

The definition of context free grammars CFGs allows us to develop a wide variety of grammars Most of the time some of the productions of CFGs are not useful and are redundant This happens because the ...

Null productions are of the form A -> e.lf L is CFL generated by a CFG...

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Null productions are of the form A -> e.lf L is CFL generated by a CFG...

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The definition of context free grammars CFGs allows us to develop a wide variety of grammars Most of the time some of the productions of CFGs are not useful and are redundant This happens because the ... View the full answer

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