Unreachable nonterminal
= Unreachable nonterminal
A nonterminal is unreachable when no word derivable from the start symbol contains it. Productions whose left sides are unreachable do not affect the generated <formal language theory>[language].
= Unreachable nonterminal
A nonterminal is unreachable when no word derivable from the start symbol contains it. Productions whose left sides are unreachable do not affect the generated <formal language theory>[language].