Documentation

Mathlib.Tactic.LinearCombination.Lemmas

Lemmas for the linear_combination tactic #

These should not be used directly in user code.

Addition #

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theorem Mathlib.Tactic.LinearCombination.add_eq_eq {α : Type u_1} {a₁ a₂ b₁ b₂ : α} [Add α] (p₁ : a₁ = b₁) (p₂ : a₂ = b₂) :
a₁ + a₂ = b₁ + b₂
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theorem Mathlib.Tactic.LinearCombination.add_le_eq {α : Type u_1} {a₁ a₂ b₁ b₂ : α} [OrderedAddCommMonoid α] (p₁ : a₁ ≤ b₁) (p₂ : a₂ = b₂) :
a₁ + a₂ ≤ b₁ + b₂
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theorem Mathlib.Tactic.LinearCombination.add_eq_le {α : Type u_1} {a₁ a₂ b₁ b₂ : α} [OrderedAddCommMonoid α] (p₁ : a₁ = b₁) (p₂ : a₂ ≤ b₂) :
a₁ + a₂ ≤ b₁ + b₂
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theorem Mathlib.Tactic.LinearCombination.add_lt_eq {α : Type u_1} {a₁ a₂ b₁ b₂ : α} [OrderedCancelAddCommMonoid α] (p₁ : a₁ < b₁) (p₂ : a₂ = b₂) :
a₁ + a₂ < b₁ + b₂
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theorem Mathlib.Tactic.LinearCombination.add_eq_lt {α : Type u_1} [OrderedCancelAddCommMonoid α] {a₁ b₁ a₂ b₂ : α} (p₁ : a₁ = b₁) (p₂ : a₂ < b₂) :
a₁ + a₂ < b₁ + b₂

Multiplication #

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theorem Mathlib.Tactic.LinearCombination.mul_eq_const {α : Type u_1} {a b : α} [Mul α] (p : a = b) (c : α) :
a * c = b * c
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theorem Mathlib.Tactic.LinearCombination.mul_le_const {α : Type u_1} {b c : α} [OrderedSemiring α] (p : b ≤ c) {a : α} (ha : 0 ≤ a) :
b * a ≤ c * a
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theorem Mathlib.Tactic.LinearCombination.mul_lt_const {α : Type u_1} {b c : α} [StrictOrderedSemiring α] (p : b < c) {a : α} (ha : 0 < a) :
b * a < c * a
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theorem Mathlib.Tactic.LinearCombination.mul_lt_const_weak {α : Type u_1} {b c : α} [OrderedSemiring α] (p : b < c) {a : α} (ha : 0 ≤ a) :
b * a ≤ c * a
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theorem Mathlib.Tactic.LinearCombination.mul_const_eq {α : Type u_1} {b c : α} [Mul α] (p : b = c) (a : α) :
a * b = a * c
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theorem Mathlib.Tactic.LinearCombination.mul_const_le {α : Type u_1} {b c : α} [OrderedSemiring α] (p : b ≤ c) {a : α} (ha : 0 ≤ a) :
a * b ≤ a * c
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theorem Mathlib.Tactic.LinearCombination.mul_const_lt {α : Type u_1} {b c : α} [StrictOrderedSemiring α] (p : b < c) {a : α} (ha : 0 < a) :
a * b < a * c
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theorem Mathlib.Tactic.LinearCombination.mul_const_lt_weak {α : Type u_1} {b c : α} [OrderedSemiring α] (p : b < c) {a : α} (ha : 0 ≤ a) :
a * b ≤ a * c

Division #

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theorem Mathlib.Tactic.LinearCombination.div_eq_const {α : Type u_1} {a b : α} [Div α] (p : a = b) (c : α) :
a / c = b / c
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theorem Mathlib.Tactic.LinearCombination.div_le_const {α : Type u_1} {b c : α} [LinearOrderedSemifield α] (p : b ≤ c) {a : α} (ha : 0 ≤ a) :
b / a ≤ c / a
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theorem Mathlib.Tactic.LinearCombination.div_lt_const {α : Type u_1} {b c : α} [LinearOrderedSemifield α] (p : b < c) {a : α} (ha : 0 < a) :
b / a < c / a
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theorem Mathlib.Tactic.LinearCombination.div_lt_const_weak {α : Type u_1} {b c : α} [LinearOrderedSemifield α] (p : b < c) {a : α} (ha : 0 ≤ a) :
b / a ≤ c / a

Lemmas constructing the reduction of a goal to a specified built-up hypothesis #

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theorem Mathlib.Tactic.LinearCombination.eq_of_eq {α : Type u_1} {a a' b b' : α} [Add α] [IsRightCancelAdd α] (p : a = b) (H : a' + b = b' + a) :
a' = b'
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theorem Mathlib.Tactic.LinearCombination.le_of_le {α : Type u_1} {a a' b b' : α} [OrderedCancelAddCommMonoid α] (p : a ≤ b) (H : a' + b ≤ b' + a) :
a' ≤ b'
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theorem Mathlib.Tactic.LinearCombination.le_of_eq {α : Type u_1} {a a' b b' : α} [OrderedCancelAddCommMonoid α] (p : a = b) (H : a' + b ≤ b' + a) :
a' ≤ b'
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theorem Mathlib.Tactic.LinearCombination.le_of_lt {α : Type u_1} {a a' b b' : α} [OrderedCancelAddCommMonoid α] (p : a < b) (H : a' + b ≤ b' + a) :
a' ≤ b'
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theorem Mathlib.Tactic.LinearCombination.lt_of_le {α : Type u_1} {a a' b b' : α} [OrderedCancelAddCommMonoid α] (p : a ≤ b) (H : a' + b < b' + a) :
a' < b'
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theorem Mathlib.Tactic.LinearCombination.lt_of_eq {α : Type u_1} {a a' b b' : α} [OrderedCancelAddCommMonoid α] (p : a = b) (H : a' + b < b' + a) :
a' < b'
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theorem Mathlib.Tactic.LinearCombination.lt_of_lt {α : Type u_1} {a a' b b' : α} [OrderedCancelAddCommMonoid α] (p : a < b) (H : a' + b ≤ b' + a) :
a' < b'
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theorem Mathlib.Tactic.LinearCombination.eq_rearrange {G : Type u_3} [AddGroup G] {a b : G} :
a - b = 0 → a = b

Alias of the forward direction of sub_eq_zero.

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theorem Mathlib.Tactic.LinearCombination.le_rearrange {α : Type u_2} [OrderedAddCommGroup α] {a b : α} (h : a - b ≤ 0) :
a ≤ b
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theorem Mathlib.Tactic.LinearCombination.lt_rearrange {α : Type u_2} [OrderedAddCommGroup α] {a b : α} (h : a - b < 0) :
a < b
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theorem Mathlib.Tactic.LinearCombination.eq_of_add_pow {α : Type u_1} {a a' b b' : α} [Ring α] [NoZeroDivisors α] (n : ℕ) (p : a = b) (H : (a' - b') ^ n - (a - b) = 0) :
a' = b'

Lookup functions for lemmas by operation and relation(s) #

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def Mathlib.Ineq.addRelRelData :
Mathlib.Ineq → Mathlib.Ineq → Lean.Name

Given two (in)equalities, look up the lemma to add them.

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    inductive Mathlib.Ineq.WithStrictness :
    Type

    Finite inductive type extending Mathlib.Ineq: a type of inequality (eq, le or lt), together with, in the case of lt, a boolean, typically representing the strictness (< or ≤) of some other inequality.

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      def Mathlib.Ineq.mulRelConstData :
      Mathlib.Ineq.WithStrictness → Lean.Name

      Given an (in)equality, look up the lemma to left-multiply it by a constant. If relevant, also take into account the degree of positivity which can be proved of the constant: strict or non-strict.

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        def Mathlib.Ineq.mulConstRelData :
        Mathlib.Ineq.WithStrictness → Lean.Name

        Given an (in)equality, look up the lemma to right-multiply it by a constant. If relevant, also take into account the degree of positivity which can be proved of the constant: strict or non-strict.

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          def Mathlib.Ineq.divRelConstData :
          Mathlib.Ineq.WithStrictness → Lean.Name

          Given an (in)equality, look up the lemma to divide it by a constant. If relevant, also take into account the degree of positivity which can be proved of the constant: strict or non-strict.

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            def Mathlib.Ineq.relImpRelData :
            Mathlib.Ineq → Mathlib.Ineq → Option (Lean.Name × Mathlib.Ineq)

            Given two (in)equalities P and Q, look up the lemma to deduce Q from P, and the relation appearing in the side condition produced by this lemma.

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              def Mathlib.Ineq.rearrangeData :
              Mathlib.Ineq → Lean.Name

              Given an (in)equality, look up the lemma to move everything to the LHS.

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