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Theorems · Theorem · logic and foundations

Cardinal.lift_mk_le_lift_mk_of_surjective

∀ {α : Type u} {β : Type v} {f : α → β},
  Function.Surjective f → Cardinal.lift.{u, v} (Cardinal.mk β) ≤ Cardinal.lift.{v, u} (Cardinal.mk α)
Defined in
Mathlib.SetTheory.Cardinal.Basic
Cited by
5 results in Mathlib
Foundations
Depth 72 from the axioms · uses propext, Classical.choice, Quot.sound

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