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Theorems · Theorem · real analysis

Real.arcosh_cosh

∀ {x : ℝ}, 0 ≤ x → Real.arcosh (Real.cosh x) = x

arcosh is the left inverse of cosh over $[0, ∞)$.

Defined in
Mathlib.Analysis.SpecialFunctions.Arcosh
Cited by
0 results in Mathlib
Foundations
Depth 208 from the axioms · uses propext, Classical.choice, Quot.sound

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