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Theorems · Theorem · order theory

tsub_add_cancel_of_le

∀ {α : Type u_1} [inst : AddCommSemigroup α] [inst_1 : PartialOrder α] [ExistsAddOfLE α] [AddLeftMono α]
  [inst_4 : Sub α] [OrderedSub α] {a b : α}, a ≤ b → b - a + a = b
Defined in
Mathlib.Algebra.Order.Sub.Unbundled.Basic
Cited by
112 results in Mathlib
Foundations
Depth 9 from the axioms, rests on 44 definitions · uses propext, Quot.sound
Assumes
AddCommSemigroupPartialOrderExistsAddOfLEAddLeftMonoSubOrderedSub

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