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Theorems · Theorem · order theory

tsub_le_tsub

∀ {α : Type u_1} [inst : Preorder α] [inst_1 : AddCommSemigroup α] [inst_2 : Sub α] [OrderedSub α] {a b c d : α}
  [AddLeftMono α], a ≤ b → c ≤ d → a - d ≤ b - c
Defined in
Mathlib.Algebra.Order.Sub.Defs
Cited by
18 results in Mathlib
Foundations
Depth 9 from the axioms · uses propext, Quot.sound
Assumes
PreorderAddCommSemigroupSubOrderedSubAddLeftMono

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