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Theorems · Theorem · order theory

mul_add_mul_lt_mul_add_mul

∀ {R : Type u} [inst : Semiring R] [inst_1 : PartialOrder R] {a b c d : R} [AddLeftReflectLT R] [ExistsAddOfLE R]
  [MulPosStrictMono R] [AddLeftStrictMono R], a < b → c < d → a * d + b * c < a * c + b * d

Binary strict rearrangement inequality.

Defined in
Mathlib.Algebra.Order.Ring.Unbundled.Basic
Cited by
1 results in Mathlib
Foundations
Depth 12 from the axioms · uses no axioms
Assumes
SemiringPartialOrderAddLeftReflectLTExistsAddOfLEMulPosStrictMonoAddLeftStrictMono

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