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Question
A derivation in a context free grammar will be called _____ if the right most non terminal symbol is replaced at each step.
A derivation in a context free grammar will be called _____ if the right most non terminal symbol is replaced at each step.
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Solution
The correct option is B Rightmost
A derivation in a context free grammar will be called rightmost if the
right most non terminal symbol is replaced at each step.
Context-free grammar(CFG) is a certain type of formal grammar: a set of production rules that describe all possible strings in
a given formal language. Production rules are simple replacements.
The productions of a grammar specify the
manner in which the terminals and non-terminals can be combined to form
strings. Each production consists of a non-terminal called the left side of the
production, an arrow, and a sequence of tokens on- terminals, called the right side of the production.
A derivation in a context free grammar will be called rightmost if the right most non terminal symbol is replaced at each step.
Context-free grammar(CFG) is a certain type of formal grammar: a set of production rules that describe all possible strings in a given formal language. Production rules are simple replacements.
The productions of a grammar specify the manner in which the terminals and non-terminals can be combined to form strings. Each production consists of a non-terminal called the left side of the production, an arrow, and a sequence of tokens on- terminals, called the right side of the production.
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