Question: For languages L 1 and L 2 , define L 1 / L 2 = { w | wx in L 1 for some x

For languages L1 and L2, define L1/L2={w | wx in L1 for some x in L2}. Prove that if L1 is context-free and L2 is regular, then L1/L2 is context-free.
For languages L 1 and L 2 , define L 1 / L 2 = {

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