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Automata Theory, including abstract machines, grammars, parsing, grammatical inference, transducers, and finite-state techniques

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Intersection between context-free and context-sensitive language decidability [closed]

I'm trying to find a formal proof of the following fact: Given a context-free language, say $L_1$, and a context-sensitive language, say $L_2$, it is NOT decidable if their intersection is empty ($L_ …
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