$$ L = \{ a^{2n}w \mid |w| = n\},\ \Sigma=\{ a,b \} $$
My CFG: $$ S \to \epsilon\mid aaST \\ T\to a \mid b $$
My lecturer wrote this is wrong because $w$ but I don't understand why.
2026-03-29 23:58:20.1774828700
Is this correctly CFG for this language?
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