[Solved]: Does a context-free grammar with multiple variables have a “starting” point?

Problem Detail: So lets consider the following grammar $$ begin{align*} S &to 0 mid 0A A &to 1 end{align*} $$ would the string “1” be accepted by the language or must the language start with $S$?

Asked By : Moddah

Answered By : sashas

No $1$ will not be a part of the grammar, as only those strings generated by starting from the start variable $S$ are part of the grammar.
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Question Source : http://cs.stackexchange.com/questions/57351