Question: Prove that in a two-level cache hierarchy, where L1 is closer to the processor, inclusion is maintained with no extra action if L2 has at

Prove that in a two-level cache hierarchy, where L1 is closer to the processor, inclusion is maintained with no extra action if L2 has at least as much associativity as L1, both caches use line replaceable unit (LRU) replacement, and both caches have the same block sizes.

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