Theorem: CliffordAlgebra.odd_induction
File: Mathlib/LinearAlgebra/CliffordAlgebra/Grading.lean

tactic: refine evenOdd_induction (motive := P) (fun ιv => ?_) add ι_mul_ι_mul x hx
state_before: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
⊢ P x hx
state_after: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
⊢ ∀ (h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1), P ιv ⋯

tactic: intro h
state_before: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
⊢ ∀ (h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1), P ιv ⋯
state_after: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
⊢ P ιv ⋯

tactic: rw [ZMod.val_one, pow_one] at h
state_before: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
⊢ P ιv ⋯
state_after: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
h✝ : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q)
⊢ P ιv ⋯

tactic: revert h
state_before: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
h✝ : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q)
⊢ P ιv ⋯
state_after: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
⊢ ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) → P ιv ⋯

tactic: rintro ⟨v, rfl⟩
state_before: R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
ιv : CliffordAlgebra Q
h : ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
⊢ ιv ∈ LinearMap.range (CliffordAlgebra.ι Q) → P ιv ⋯
state_after: case intro
R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
v : M
h : (CliffordAlgebra.ι Q) v ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
⊢ P ((CliffordAlgebra.ι Q) v) ⋯

tactic: exact ι v
state_before: case intro
R : Type u_1
M : Type u_2
inst✝² : CommRing R
inst✝¹ : AddCommGroup M
inst✝ : Module R M
Q : QuadraticForm R M
P : (x : CliffordAlgebra Q) → x ∈ evenOdd Q 1 → Prop
ι : ∀ (v : M), P ((CliffordAlgebra.ι Q) v) ⋯
add : ∀ (x y : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1) (hy : y ∈ evenOdd Q 1), P x hx → P y hy → P (x + y) ⋯
ι_mul_ι_mul :
  ∀ (m₁ m₂ : M) (x : CliffordAlgebra Q) (hx : x ∈ evenOdd Q 1),
    P x hx → P ((CliffordAlgebra.ι Q) m₁ * (CliffordAlgebra.ι Q) m₂ * x) ⋯
x : CliffordAlgebra Q
hx : x ∈ evenOdd Q 1
v : M
h : (CliffordAlgebra.ι Q) v ∈ LinearMap.range (CliffordAlgebra.ι Q) ^ ZMod.val 1
⊢ P ((CliffordAlgebra.ι Q) v) ⋯
state_after: no goals