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Theorems · Theorem · order theory

AntitoneOn.dual_left

∀ {α : Type u} {β : Type v} [inst : Preorder α] [inst_1 : Preorder β] {f : α → β} {s : Set α},
  AntitoneOn f s → MonotoneOn (f ∘ ⇑OrderDual.ofDual) s

Alias of the reverse direction of monotoneOn_comp_ofDual_iff.

Defined in
Mathlib.Order.Monotone.Basic
Cited by
4 results in Mathlib
Foundations
Depth 15 from the axioms · uses Quot.sound
Assumes
PreorderPreorder

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