: [ S \Rightarrow SS \Rightarrow (S)S \Rightarrow ((S))S \Rightarrow (())S \Rightarrow (())(S) \Rightarrow (())() ] 4. Example 3 – ( a^n b^n ) (equal number of a’s and b’s) Language : ( a^n b^n \mid n \ge 0 )
: [ S \to SS \mid (S) \mid \varepsilon ]
: [ S \to aSa \mid bSb \mid a \mid b \mid \varepsilon ]
: [ S \Rightarrow SS \Rightarrow (S)S \Rightarrow ((S))S \Rightarrow (())S \Rightarrow (())(S) \Rightarrow (())() ] 4. Example 3 – ( a^n b^n ) (equal number of a’s and b’s) Language : ( a^n b^n \mid n \ge 0 )
: [ S \to SS \mid (S) \mid \varepsilon ]
: [ S \to aSa \mid bSb \mid a \mid b \mid \varepsilon ]
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