Theorems · Theorem · order theory
hnot_hnot_le
∀ {α : Type u_2} [inst : CoheytingAlgebra α] {a : α}, ￢￢a ≤ a- Defined in
- Mathlib.Order.Heyting.Basic
- Cited by
- 4 results in Mathlib
- Foundations
- Depth 11 from the axioms · uses propext
- Assumes
- CoheytingAlgebra
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites4
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- CoheytingAlgebrastatement and proof · cited by 96
- HNot.hnotstatement · cited by 83
- codisjoint_hnot_rightproof · cited by 7
- Codisjoint.hnot_le_leftproof · cited by 2
Cited by4
Results whose statement or proof uses this declaration.
- hnot_antiproof · cited by 7
- hnot_hnot_hnotproof · cited by 3
- Coheyting.hnot_hnot_sup_boundaryproof · cited by 2
- Coheyting.boundary_hnot_leproof · cited by 0