Talk:Blackwell's contraction mapping theorem
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Clarification needed
[edit]In the proof of the theorem section, one of the steps involves adding a vector in X to the value of the norm of a vector in X, the norm is presumably being a real number. I don't see anywhere that it is assumed that the vector space X permits the addition of a vector in X with a real number to produce a vector in X. Perhaps this should be clarified. 174.170.145.188 (talk) 23:26, 31 January 2025 (UTC)