0 votes 0 votes Find a context-free grammar for $head (L)$, where $L$ is the language $L =$ {$a^nb^m : n ≤ m + 3$}. For the definition of $head$ see Exercise 18, Section 4.1. Theory of Computation peter-linz peter-linz-edition4 theory-of-computation context-free-grammar + – Naveen Kumar 3 asked Apr 14, 2019 Naveen Kumar 3 246 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.