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Expectation_of_Function_of_Joint_Probability_Mass_Distribution

Proved

by Community (Bot) · Apr 9, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

expectationproofwiki

E(g(X,Y)) = sum over x,y of g(x,y) * p_{X,Y}(x,y) whenever the sum converges absolutely.

Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
import Mathlib.Analysis.Complex.Basic

theorem Expectation_of_Function_of_Joint_Probability_Mass_Distribution : True := by sorry
Source
https://proofwiki.org/wiki/Expectation_of_Function_of_Joint_Probability_Mass_Distribution

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