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Theorems · Definition · logic and foundations

Cardinal.cantorFunction

ℝ → (ℕ → Bool) → ℝ

cantorFunction c (f : ℕ → Bool) is Σ n, f n * c ^ n, where true is interpreted as 1 and false is interpreted as 0. It is implemented using cantorFunctionAux.

Defined in
Mathlib.Analysis.Real.Cardinality
Cited by
4 results in Mathlib
Foundations
Depth 114 from the axioms · uses propext, Classical.choice, Quot.sound

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