Theorems · Theorem · logic and foundations

Set.Countable.image2

∀ {α : Type u} {β : Type v} {γ : Type w} {s : Set α} {t : Set β},
  s.Countable → t.Countable → ∀ (f : α → β → γ), (Set.image2 f s t).Countable

Defined in

Mathlib.Data.Set.Countable

Cited by

1 results in Mathlib

Foundations

Depth 72 from the axioms · uses propext, Classical.choice, Quot.sound