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• 31 "Abstract nonsense" proof of the splitting lemma
• 29 "Abstract nonsense" proof of the splitting lemma
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• 10 Motivation to introduce von Neumann algebras in addition to $C^*$algebras?
• 10 How to get a double line subset symbol, (but not \Subset)?
• 7 Algebraic formulation of QFT and unbounded operators
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