The string "the dog ate the bone" was created using production rules that replaced non-terminal with terminal symbols.[1]
In formal languages, terminal and nonterminal symbols are the lexical elements used in specifying the production rules constituting a formal grammar. Terminal symbols are the elementary symbols of the language defined as part of a formal grammar. Nonterminal symbols (or syntactic variables) are replaced by groups of terminal symbols according to the production rules.
The terminals and nonterminals of a particular grammar are in two completely separate sets.
^Rosen, K. H. (2012). Discrete mathematics and its applications. McGraw-Hill. pages 847-851
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terminal emulator for Windows 10 and Windows 11 GNOME Terminal, a Linux and BSD terminal emulator Terminalandnonterminalsymbols, lexical elements used in...
Semantic information is stored in attributes associated with terminalandnonterminalsymbols of the grammar. The values of attributes are the result of...
at the symbols (terminalsandnonterminals) found following the dots; in the case of item set 0 those symbols are the terminals '0' and '1' and the nonterminals...
are strings formed of symbols in Σ{\displaystyle \Sigma } and V{\displaystyle V} (finite sets of terminalandnonterminalsymbols respectively). Informally...
(WSN), and augmented Backus–Naur form (ABNF). Metalanguages have their own metasyntax each composed of terminalsymbols, nonterminalsymbols, and metasymbols...
N} is a finite set of nonterminalsymbols, T{\displaystyle T} is a finite set of terminalsymbols with N{\displaystyle N} and T{\displaystyle T} disjoint...
Expressions can be a mix of terminalsymbols, nonterminalsymbolsand operators A derivation rule is composed by a nonterminalsymboland an expression S → α...
A, B, and C are nonterminalsymbols, the letter a is a terminalsymbol (a symbol that represents a constant value), S is the start symbol, and ε denotes...
called a terminalsymbol, or terminal for short. Likewise the names assigned to parsing expressions are called nonterminalsymbols, or nonterminals for short...
where α, β are arbitrary symbol strings, and x is an arbitrary lookahead terminal. FOLLOW(k,B) of an item set k and a nonterminal B is the union of the follow...
are the terminalsymbols of that grammar, and the internal nodes the nonterminal or variable symbols. One can read off the corresponding terminal string...
string ("stack") σ ∈ F* of index symbols is attached to every nonterminalsymbol A ∈ N, denoted by A[σ]. Terminalsymbols may not be followed by index stacks...
"(" expression ")" . Terminals are expressed in quotes. Each nonterminal is defined by a rule in the grammar, except for ident and number, which are assumed...
aA_{1}A_{2}\cdots A_{n}} where A{\displaystyle A} is a nonterminalsymbol, a{\displaystyle a} is a terminalsymbol, and A1A2…An{\displaystyle A_{1}A_{2}\ldots A_{n}}...
language of the grammar. For example, the grammar (terminalandnonterminalsymbols indicated by lower and upper case initials, respectively) with the rules...
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