67 questions linked to/from How to show that L = L(G)?
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Why is the distinction between linear and context-free grammars useful?

The linear grammar is a grammar that's either left, right or left and right linear. The context-free grammar can contain any kind of productions of non-terminals and terminals. All linear grammars ...
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Proof for BFS and DFS equivalence

I'm trying to prove (by induction) that BFS in equivalent to DFS, in the sense that they return the same set of visited nodes, but I'm stuck in the middle of some of the cases. Let $G$ be a directed ...
Proving $L = \{ w : w \neq w^R \}$ over $\Sigma = \{0,1\}$ is CFL
I'm trying to prove $L = \{ w : w \neq w^R \}$ over $\Sigma = \{0,1\}$ is CFL. Define $G = ({S,T}, \Sigma, R, S)$ where $R = S \to 0S0|1S1|0T1|1T0, \; T \to 0T|1T|\varepsilon$. Now I want to show ...