Module: Mathlib.Analysis.Normed.Affine.Simplex

Goal state before:
pp: case «0».«1».«0».«1»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩

pp: case «0».«1».«0».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

pp: case «0».«1».«1».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩ ∧ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

pp: case «0».«2».«0».«1»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩

pp: case «0».«2».«0».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

pp: case «0».«2».«1».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

pp: case «1».«2».«0».«1»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩

pp: case «1».«2».«0».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

pp: case «1».«2».«1».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

Tactic:
<;>

Goal state after:
case «0».«1».«0».«1»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩

case «0».«1».«0».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

case «0».«1».«1».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩ ∧ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

case «0».«2».«0».«1»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩

case «0».«2».«0».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

case «0».«2».«1».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨0, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

case «1».«2».«0».«1»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨1, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩

case «1».«2».«0».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨0, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨0, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩

case «1».«2».«1».«2»
R : Type u_1
V : Type u_2
P : Type u_3
inst✝⁴ : Ring R
inst✝³ : SeminormedAddCommGroup V
inst✝² : PseudoMetricSpace P
inst✝¹ : Module R V
inst✝ : NormedAddTorsor V P
t : Triangle R P
x✝ :
  dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2) ∧
    dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2) ∧
      dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
h₁ : dist (t.points 0) (t.points 1) ≠ dist (t.points 0) (t.points 2)
h₂ : dist (t.points 0) (t.points 1) ≠ dist (t.points 1) (t.points 2)
h₃ : dist (t.points 0) (t.points 2) ≠ dist (t.points 1) (t.points 2)
hx : True
hxy :
  dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩)) =
    dist (t.points ((fun i ↦ i) ⟨1, ⋯⟩)) (t.points ((fun i ↦ i) ⟨2, ⋯⟩))
hy : True
⊢ (fun i ↦ i) ⟨1, ⋯⟩ = (fun i ↦ i) ⟨1, ⋯⟩ ∧ (fun i ↦ i) ⟨2, ⋯⟩ = (fun i ↦ i) ⟨2, ⋯⟩