Theorems · Theorem · order theory
Order.IsNormal.lt_iff_exists_lt
∀ {α : Type u_1} {β : Type u_2} {a : α} {f : α → β} [inst : LinearOrder α] [inst_1 : LinearOrder β],
Order.IsNormal f → Order.IsSuccLimit a → ∀ {b : β}, b < f a ↔ ∃ a' < a, b < f a'- Defined in
- Mathlib.Order.IsNormal
- Cited by
- 4 results in Mathlib
- Foundations
- Depth 19 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- LinearOrderLinearOrder
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites6
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- LinearOrderstatement and proof · cited by 8,572
- Set.Iioproof · cited by 1,166
- Order.IsSuccLimitstatement and proof · cited by 255
- Order.IsNormalstatement and proof · cited by 118
- lt_isLUB_iffproof · cited by 7
- Order.IsNormal.isLUB_image_Iio_of_isSuccLimitproof · cited by 3
Cited by4
Results whose statement or proof uses this declaration.
- Order.IsNormal.compproof · cited by 5
- Order.IsNormal.map_isSuccLimitproof · cited by 4
- Ordinal.mul_lt_omega0_opowproof · cited by 1
- Ordinal.IsFundamentalSeq.comp_isNormalproof · cited by 0