Theorems · Inductive type · order theory
ClosureOperator
(α : Type u_1) → [Preorder α] → Type u_1
A closure operator on the preorder α is a monotone function which is extensive (every x
is less than its closure) and idempotent.
- Defined in
- Mathlib.Order.Closure
- Cited by
- 371 results in Mathlib
- Foundations
- Depth 1 from the axioms, rests on 2 definitions · uses no axioms
- Assumes
- Preorder
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites1
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Preorderstatement · cited by 7,952
Cited by415
Results whose statement or proof uses this declaration.
- convexHullstatement · cited by 163
- ClosureOperator.IsClosedstatement and proof · cited by 38
- subset_convexHullstatement · cited by 36
- supClosurestatement · cited by 33
- absConvexHullstatement · cited by 29
- convexHull_minstatement · cited by 28
- convex_convexHullstatement · cited by 25
- latticeClosurestatement · cited by 24
- Convexity.convexHullstatement · cited by 22
- countableInfClosurestatement · cited by 21
- countableSupClosurestatement · cited by 21
- infClosurestatement · cited by 21
Showing the 200 most cited of 415.