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Theorems · Theorem · order theory

Function.Surjective.range_comp

∀ {α : Type u_1} {ι : Sort u_3} {ι' : Sort u_4} {f : ι → ι'},
  Function.Surjective f → ∀ (g : ι' → α), Set.range (g ∘ f) = Set.range g
Defined in
Mathlib.Data.Set.Image
Cited by
18 results in Mathlib
Foundations
Depth 6 from the axioms · uses propext, Quot.sound

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