There are two sequences: and each element of the sequences is 2 or 3. We know that: Prove that the two sequences are equals. Any help would be appreciated!
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Originally Posted by doug There are two sequences: and each element of the sequences is 2 or 3. We know that: Prove that the two sequences are equals. Any help would be appreciated! By reductio ad absurdum. First, show that it is enough to suppose (this already is a little nice problem!), say . Now, show that and get a contradiction. Tonio
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