Mathlib Map

Theorems · Theorem

Function.IsFixedPt.eq

∀ {α : Type u₁} {f : α → α} {x : α}, Function.IsFixedPt f x → f x = x

If x is a fixed point of f, then f x = x. This is useful, e.g., for rw or simp.

Defined in
Mathlib.Logic.Function.Defs
Cited by
14 results in Mathlib
Foundations
Depth 2 from the axioms · uses no axioms

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