mathlib-initiative/mathlib-tactics huggingface dataset:
Module: Mathlib.NumberTheory.NumberField.InfinitePlace.Ramification

Goal state before:
pp: case inl
k : Type u_1
inst✝³ : Field k
K : Type u_2
inst✝² : Field K
inst✝¹ : Algebra k K
w : InfinitePlace K
inst✝ : IsGalois k K
e : Nat.card ↥(Stab w) = 1
⊢ ¬1 = 1 ↔ 1 = 2

pp: case inr
k : Type u_1
inst✝³ : Field k
K : Type u_2
inst✝² : Field K
inst✝¹ : Algebra k K
w : InfinitePlace K
inst✝ : IsGalois k K
e : Nat.card ↥(Stab w) = 2
⊢ ¬2 = 1 ↔ 2 = 2

Tactic:
<;>

Goal state after:
case inl
k : Type u_1
inst✝³ : Field k
K : Type u_2
inst✝² : Field K
inst✝¹ : Algebra k K
w : InfinitePlace K
inst✝ : IsGalois k K
e : Nat.card ↥(Stab w) = 1
⊢ ¬1 = 1 ↔ 1 = 2

case inr
k : Type u_1
inst✝³ : Field k
K : Type u_2
inst✝² : Field K
inst✝¹ : Algebra k K
w : InfinitePlace K
inst✝ : IsGalois k K
e : Nat.card ↥(Stab w) = 2
⊢ ¬2 = 1 ↔ 2 = 2
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.ConvexBody

Goal state before:
pp: case pos
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
w₀ : InfinitePlace K
hw₀ : w₀.IsReal
B : ℝ≥0
hB : minkowskiBound K 1 < ↑(convexBodyLTFactor K) * ↑B
this : minkowskiBound K 1 < volume (convexBodyLT K fun w ↦ if w = w₀ then B else 1)
a : 𝓞 K
h_nz : a ≠ 0
h_le : ∀ (w : InfinitePlace K), w ↑a < ↑(if w = w₀ then B else 1)
w : InfinitePlace K
h✝ : w = w₀
⊢ ↑B ≤ ↑(max B 1)

pp: case neg
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
w₀ : InfinitePlace K
hw₀ : w₀.IsReal
B : ℝ≥0
hB : minkowskiBound K 1 < ↑(convexBodyLTFactor K) * ↑B
this : minkowskiBound K 1 < volume (convexBodyLT K fun w ↦ if w = w₀ then B else 1)
a : 𝓞 K
h_nz : a ≠ 0
h_le : ∀ (w : InfinitePlace K), w ↑a < ↑(if w = w₀ then B else 1)
w : InfinitePlace K
h✝ : ¬w = w₀
⊢ ↑1 ≤ ↑(max B 1)

Tactic:
<;>

Goal state after:
case pos
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
w₀ : InfinitePlace K
hw₀ : w₀.IsReal
B : ℝ≥0
hB : minkowskiBound K 1 < ↑(convexBodyLTFactor K) * ↑B
this : minkowskiBound K 1 < volume (convexBodyLT K fun w ↦ if w = w₀ then B else 1)
a : 𝓞 K
h_nz : a ≠ 0
h_le : ∀ (w : InfinitePlace K), w ↑a < ↑(if w = w₀ then B else 1)
w : InfinitePlace K
h✝ : w = w₀
⊢ ↑B ≤ ↑(max B 1)

case neg
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
w₀ : InfinitePlace K
hw₀ : w₀.IsReal
B : ℝ≥0
hB : minkowskiBound K 1 < ↑(convexBodyLTFactor K) * ↑B
this : minkowskiBound K 1 < volume (convexBodyLT K fun w ↦ if w = w₀ then B else 1)
a : 𝓞 K
h_nz : a ≠ 0
h_le : ∀ (w : InfinitePlace K), w ↑a < ↑(if w = w₀ then B else 1)
w : InfinitePlace K
h✝ : ¬w = w₀
⊢ ↑1 ≤ ↑(max B 1)
Module: Mathlib.NumberTheory.NumberField.InfinitePlace.Ramification

Goal state before:
pp: case h.inl
K : Type u_4
L : Type u_5
inst✝³ : Field K
inst✝² : Field L
inst✝¹ : Algebra K L
w : InfinitePlace L
v : InfinitePlace K
inst✝ : w.LiesOver v
x : K
hx :
  ¬(conjugate (mk (w.embedding.comp (algebraMap K L))).embedding) x =
      (mk (w.embedding.comp (algebraMap K L))).embedding x
h✝ : (mk (w.embedding.comp (algebraMap K L))).embedding = w.embedding.comp (algebraMap K L)
⊢ ¬(conjugate w.embedding) ((algebraMap K L) x) = w.embedding ((algebraMap K L) x)

pp: case h.inr
K : Type u_4
L : Type u_5
inst✝³ : Field K
inst✝² : Field L
inst✝¹ : Algebra K L
w : InfinitePlace L
v : InfinitePlace K
inst✝ : w.LiesOver v
x : K
hx :
  ¬(conjugate (mk (w.embedding.comp (algebraMap K L))).embedding) x =
      (mk (w.embedding.comp (algebraMap K L))).embedding x
h✝ : (mk (w.embedding.comp (algebraMap K L))).embedding = conjugate (w.embedding.comp (algebraMap K L))
⊢ ¬(conjugate w.embedding) ((algebraMap K L) x) = w.embedding ((algebraMap K L) x)

Tactic:
<;>

Goal state after:
case h.inl
K : Type u_4
L : Type u_5
inst✝³ : Field K
inst✝² : Field L
inst✝¹ : Algebra K L
w : InfinitePlace L
v : InfinitePlace K
inst✝ : w.LiesOver v
x : K
hx :
  ¬(conjugate (mk (w.embedding.comp (algebraMap K L))).embedding) x =
      (mk (w.embedding.comp (algebraMap K L))).embedding x
h✝ : (mk (w.embedding.comp (algebraMap K L))).embedding = w.embedding.comp (algebraMap K L)
⊢ ¬(conjugate w.embedding) ((algebraMap K L) x) = w.embedding ((algebraMap K L) x)

case h.inr
K : Type u_4
L : Type u_5
inst✝³ : Field K
inst✝² : Field L
inst✝¹ : Algebra K L
w : InfinitePlace L
v : InfinitePlace K
inst✝ : w.LiesOver v
x : K
hx :
  ¬(conjugate (mk (w.embedding.comp (algebraMap K L))).embedding) x =
      (mk (w.embedding.comp (algebraMap K L))).embedding x
h✝ : (mk (w.embedding.comp (algebraMap K L))).embedding = conjugate (w.embedding.comp (algebraMap K L))
⊢ ¬(conjugate w.embedding) ((algebraMap K L) x) = w.embedding ((algebraMap K L) x)
Module: Mathlib.NumberTheory.NumberField.InfinitePlace.Ramification

Goal state before:
pp: K : Type u_4
L : Type u_5
inst✝² : Field K
inst✝¹ : Field L
inst✝ : Algebra K L
v : InfinitePlace K
⊢ (unramifiedPlacesOver L v).ncard = (unmixedEmbeddingsOver L v.embedding).ncard

Tactic:
(bijOn_extensionIte L v).ncard_eq

Goal state after:
K : Type u_4
L : Type u_5
inst✝² : Field K
inst✝¹ : Field L
inst✝ : Algebra K L
v : InfinitePlace K
⊢ (unmixedEmbeddingsOver L v.embedding).ncard = (unmixedEmbeddingsOver L v.embedding).ncard
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.Basic

Goal state before:
pp: K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
⊢ DiscreteTopology ↥(idealLattice K I)

Tactic:
← span_idealLatticeBasis

Goal state after:
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
⊢ DiscreteTopology ↥(Submodule.span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I)))
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.Basic

Goal state before:
pp: K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
⊢ IsZLattice ℝ (idealLattice K I)

Tactic:
← span_idealLatticeBasis

Goal state after:
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
⊢ IsZLattice ℝ (Submodule.span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I)))
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.Basic

Goal state before:
pp: K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
⊢ MeasureTheory.IsAddFundamentalDomain (↥(idealLattice K I)) (ZSpan.fundamentalDomain (fractionalIdealLatticeBasis K I))
    MeasureTheory.volume

Tactic:
← span_idealLatticeBasis

Goal state after:
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
⊢ MeasureTheory.IsAddFundamentalDomain (↥(Submodule.span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I))))
    (ZSpan.fundamentalDomain (fractionalIdealLatticeBasis K I)) MeasureTheory.volume
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.Basic

Goal state before:
pp: case fst
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
i✝ : index K
x✝ : { w // w.IsReal }
⊢ (((stdOrthonormalBasis K).toBasis.map ↑(toMixed K)) i✝).1 x✝ = ((stdBasis K) i✝).1 x✝

pp: case snd
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
i✝ : index K
x✝ : { w // w.IsComplex }
⊢ (((stdOrthonormalBasis K).toBasis.map ↑(toMixed K)) i✝).2 x✝ = ((stdBasis K) i✝).2 x✝

Tactic:
<;>

Goal state after:
case fst
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
i✝ : index K
x✝ : { w // w.IsReal }
⊢ (((stdOrthonormalBasis K).toBasis.map ↑(toMixed K)) i✝).1 x✝ = ((stdBasis K) i✝).1 x✝

case snd
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
i✝ : index K
x✝ : { w // w.IsComplex }
⊢ (((stdOrthonormalBasis K).toBasis.map ↑(toMixed K)) i✝).2 x✝ = ((stdBasis K) i✝).2 x✝
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.Basic

Goal state before:
pp: case pos
K : Type u_1
inst✝ : Field K
s : Set { w // w.IsReal }
x : mixedSpace K
w : { w // w.IsReal }
hw : w ∈ s
⊢ ‖((negAt s) x).1 w‖ = ‖x.1 w‖

pp: case neg
K : Type u_1
inst✝ : Field K
s : Set { w // w.IsReal }
x : mixedSpace K
w : { w // w.IsReal }
hw : w ∉ s
⊢ ‖((negAt s) x).1 w‖ = ‖x.1 w‖

Tactic:
<;>

Goal state after:
case pos
K : Type u_1
inst✝ : Field K
s : Set { w // w.IsReal }
x : mixedSpace K
w : { w // w.IsReal }
hw : w ∈ s
⊢ ‖((negAt s) x).1 w‖ = ‖x.1 w‖

case neg
K : Type u_1
inst✝ : Field K
s : Set { w // w.IsReal }
x : mixedSpace K
w : { w // w.IsReal }
hw : w ∉ s
⊢ ‖((negAt s) x).1 w‖ = ‖x.1 w‖
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.Basic

Goal state before:
pp: case pos
K : Type u_1
inst✝¹ : Field K
s : Set { w // w.IsReal }
inst✝ : NumberField K
w : { w // w.IsReal }
hw : w ∈ s
⊢ MeasurePreserving (↑↑(neg ℝ)).toAddHom.1 volume volume

Tactic:
exact Measure.measurePreserving_neg _

Goal state after:
Module: Mathlib.NumberTheory.NumberField.CanonicalEmbedding.ConvexBody

Goal state before:
pp: K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
B : ℝ
h : minkowskiBound K I ≤ volume (convexBodySum K B)
hB : 0 ≤ B
h1 : 0 < (↑(finrank ℚ K))⁻¹
h2 : 0 ≤ B / ↑(finrank ℚ K)
h_fund :
  IsAddFundamentalDomain (↥(span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I))).toAddSubgroup)
    (fundamentalDomain (fractionalIdealLatticeBasis K I)) volume
this : Countable ↥(span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I))).toAddSubgroup
a : K
ha : a ∈ ↑↑I
hx : (mixedEmbedding K) a ∈ (span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I))).toAddSubgroup
h_nz : ⟨(mixedEmbedding K) a, hx⟩ ≠ 0
h_mem : ↑⟨(mixedEmbedding K) a, hx⟩ ∈ convexBodySum K B
⊢ ↑(finrank ℚ K) * ↑|(Algebra.norm ℚ) a| ^ (↑(finrank ℚ K))⁻¹ ≤ ∑ w, ↑w.mult * ↑w a

Tactic:
← le_div_iff₀' (Nat.cast_pos.mpr finrank_pos),

Goal state after:
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
I : (FractionalIdeal (𝓞 K)⁰ K)ˣ
B : ℝ
h : minkowskiBound K I ≤ volume (convexBodySum K B)
hB : 0 ≤ B
h1 : 0 < (↑(finrank ℚ K))⁻¹
h2 : 0 ≤ B / ↑(finrank ℚ K)
h_fund :
  IsAddFundamentalDomain (↥(span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I))).toAddSubgroup)
    (fundamentalDomain (fractionalIdealLatticeBasis K I)) volume
this : Countable ↥(span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I))).toAddSubgroup
a : K
ha : a ∈ ↑↑I
hx : (mixedEmbedding K) a ∈ (span ℤ (Set.range ⇑(fractionalIdealLatticeBasis K I))).toAddSubgroup
h_nz : ⟨(mixedEmbedding K) a, hx⟩ ≠ 0
h_mem : ↑⟨(mixedEmbedding K) a, hx⟩ ∈ convexBodySum K B
⊢ ↑|(Algebra.norm ℚ) a| ^ (↑(finrank ℚ K))⁻¹ ≤ (∑ w, ↑w.mult * ↑w a) / ↑(finrank ℚ K)
Module: Mathlib.NumberTheory.RamificationInertia.Galois

Goal state before:
pp: A : Type u_1
B : Type u_2
inst✝⁷ : CommRing A
inst✝⁶ : CommRing B
inst✝⁵ : Algebra A B
p : Ideal A
P Q : Ideal B
hPp : P.IsPrime
hp : P.LiesOver p
hQp : Q.IsPrime
inst✝⁴ : Q.LiesOver p
G : Type u_3
inst✝³ : Group G
inst✝² : Finite G
inst✝¹ : MulSemiringAction G B
inst✝ : IsGaloisGroup G A B
⊢ ∃ σ, σ • P = Q

Tactic:
rcases IsInvariant.exists_smul_of_under_eq A B G P Q <|
    (over_def P p).symm.trans (over_def Q p) with ⟨σ, hs⟩
  exact ⟨σ, hs.symm⟩

Goal state after:
Module: Mathlib.NumberTheory.NumberField.Discriminant.Basic

Goal state before:
pp: A : Type u_2
inst✝¹ : Field A
inst✝ : CharZero A
N : ℕ
D : ℕ := rankOfDiscrBdd N
B : ℝ≥0 := boundOfDiscBdd N
C : ℕ := ⌈max B 1 ^ D * ↑(D.choose (D / 2))⌉₊
x✝¹ : { F // FiniteDimensional ℚ ↥F }
K : IntermediateField ℚ A
hK₀ : FiniteDimensional ℚ ↥K
x✝ : ⟨K, hK₀⟩ ∈ {K | {w | w.IsReal}.Nonempty ∧ |discr ↥↑K| ≤ ↑N}
hK₁ : {w | w.IsReal}.Nonempty
hK₂ : |discr ↥↑⟨K, hK₀⟩| ≤ ↑N
⊢ ∃ x,
    (∃ i,
        ∃ (_ : i.natDegree ≤ D ∧ ∀ (i_1 : ℕ), i.coeff i_1 ∈ Set.Icc (-↑C) ↑C),
          x ∈ ↑(Polynomial.map (algebraMap ℤ A) i).roots.toFinset) ∧
      K = ℚ⟮x⟯

Tactic:
have : CharZero K := SubsemiringClass.instCharZero K

Goal state after:
A : Type u_2
inst✝¹ : Field A
inst✝ : CharZero A
N : ℕ
D : ℕ := rankOfDiscrBdd N
B : ℝ≥0 := boundOfDiscBdd N
C : ℕ := ⌈max B 1 ^ D * ↑(D.choose (D / 2))⌉₊
x✝¹ : { F // FiniteDimensional ℚ ↥F }
K : IntermediateField ℚ A
hK₀ : FiniteDimensional ℚ ↥K
x✝ : ⟨K, hK₀⟩ ∈ {K | {w | w.IsReal}.Nonempty ∧ |discr ↥↑K| ≤ ↑N}
hK₁ : {w | w.IsReal}.Nonempty
hK₂ : |discr ↥↑⟨K, hK₀⟩| ≤ ↑N
this : CharZero ↥K
⊢ ∃ x,
    (∃ i,
        ∃ (_ : i.natDegree ≤ D ∧ ∀ (i_1 : ℕ), i.coeff i_1 ∈ Set.Icc (-↑C) ↑C),
          x ∈ ↑(Polynomial.map (algebraMap ℤ A) i).roots.toFinset) ∧
      K = ℚ⟮x⟯
Module: Mathlib.RingTheory.Ideal.Quotient.HasFiniteQuotients

Goal state before:
pp: case inr
R : Type u_1
inst✝¹ : CommRing R
inst✝ : HasFiniteQuotients R
B : ℕ
h✝ : Infinite R
s : Finset R
t : Finset R := (s - s) \ {0}
I : Submodule R R
hI : Nat.card (R ⧸ I) ≤ B ∧ I ∉ {⊥}
hs : (Finset.image (⇑(Ideal.Quotient.mk I)) s).card < s.card
x : R
hx : x ∈ s
y : R
hy : y ∈ s
hxy : x ≠ y
h : (Ideal.Quotient.mk I) x = (Ideal.Quotient.mk I) y
⊢ x - y ∈ t

Tactic:
refine Finset.mem_sdiff.mpr ⟨Finset.mem_sub.mpr ⟨x, hx, y, hy, rfl⟩, ?_⟩

Goal state after:
case inr
R : Type u_1
inst✝¹ : CommRing R
inst✝ : HasFiniteQuotients R
B : ℕ
h✝ : Infinite R
s : Finset R
t : Finset R := (s - s) \ {0}
I : Submodule R R
hI : Nat.card (R ⧸ I) ≤ B ∧ I ∉ {⊥}
hs : (Finset.image (⇑(Ideal.Quotient.mk I)) s).card < s.card
x : R
hx : x ∈ s
y : R
hy : y ∈ s
hxy : x ≠ y
h : (Ideal.Quotient.mk I) x = (Ideal.Quotient.mk I) y
⊢ x - y ∉ {0}
Module: Mathlib.NumberTheory.NumberField.ClassNumber

Goal state before:
pp: case inl
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
h✝ :
  ∀ p ∈ Finset.Icc 1 ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊,
    Nat.Prime p →
      ∀ P ∈ (span {↑p}).primesOver (𝓞 K),
        p ^ P.inertiaDeg ℤ ≤
            ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊ →
          Submodule.IsPrincipal P
x✝ : ↥(Ideal (𝓞 K))⁰
P : Ideal (𝓞 K)
HP : P ∈ (Ideal (𝓞 K))⁰
hP : (↑⟨P, HP⟩).IsPrime
hPN :
  ↑(absNorm ↑⟨P, HP⟩) ≤ (4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)
p : ℤ
hp : under ℤ P = ℤ ∙ p
hp0 : p ≠ 0
hpprime : (under ℤ P).IsPrime → _root_.Prime p
h : |p| = p
⊢ P.LiesOver (span {p})

pp: case inr
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
h✝ :
  ∀ p ∈ Finset.Icc 1 ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊,
    Nat.Prime p →
      ∀ P ∈ (span {↑p}).primesOver (𝓞 K),
        p ^ P.inertiaDeg ℤ ≤
            ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊ →
          Submodule.IsPrincipal P
x✝ : ↥(Ideal (𝓞 K))⁰
P : Ideal (𝓞 K)
HP : P ∈ (Ideal (𝓞 K))⁰
hP : (↑⟨P, HP⟩).IsPrime
hPN :
  ↑(absNorm ↑⟨P, HP⟩) ≤ (4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)
p : ℤ
hp : under ℤ P = ℤ ∙ p
hp0 : p ≠ 0
hpprime : (under ℤ P).IsPrime → _root_.Prime p
h : |p| = -p
⊢ P.LiesOver (span {p})

Tactic:
<;>

Goal state after:
case inl
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
h✝ :
  ∀ p ∈ Finset.Icc 1 ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊,
    Nat.Prime p →
      ∀ P ∈ (span {↑p}).primesOver (𝓞 K),
        p ^ P.inertiaDeg ℤ ≤
            ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊ →
          Submodule.IsPrincipal P
x✝ : ↥(Ideal (𝓞 K))⁰
P : Ideal (𝓞 K)
HP : P ∈ (Ideal (𝓞 K))⁰
hP : (↑⟨P, HP⟩).IsPrime
hPN :
  ↑(absNorm ↑⟨P, HP⟩) ≤ (4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)
p : ℤ
hp : under ℤ P = ℤ ∙ p
hp0 : p ≠ 0
hpprime : (under ℤ P).IsPrime → _root_.Prime p
h : |p| = p
⊢ P.LiesOver (span {p})

case inr
K : Type u_1
inst✝¹ : Field K
inst✝ : NumberField K
h✝ :
  ∀ p ∈ Finset.Icc 1 ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊,
    Nat.Prime p →
      ∀ P ∈ (span {↑p}).primesOver (𝓞 K),
        p ^ P.inertiaDeg ℤ ≤
            ⌊(4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)⌋₊ →
          Submodule.IsPrincipal P
x✝ : ↥(Ideal (𝓞 K))⁰
P : Ideal (𝓞 K)
HP : P ∈ (Ideal (𝓞 K))⁰
hP : (↑⟨P, HP⟩).IsPrime
hPN :
  ↑(absNorm ↑⟨P, HP⟩) ≤ (4 / π) ^ nrComplexPlaces K * (↑(finrank ℚ K)! / ↑(finrank ℚ K) ^ finrank ℚ K * √|↑(discr K)|)
p : ℤ
hp : under ℤ P = ℤ ∙ p
hp0 : p ≠ 0
hpprime : (under ℤ P).IsPrime → _root_.Prime p
h : |p| = -p
⊢ P.LiesOver (span {p})
Module: Mathlib.NumberTheory.NumberField.Discriminant.Basic

Goal state before:
pp: A : Type u_2
inst✝¹ : Field A
inst✝ : CharZero A
N : ℕ
D : ℕ := rankOfDiscrBdd N
B : ℝ≥0 := boundOfDiscBdd N
C : ℕ := ⌈max (sqrt (1 + B ^ 2)) 1 ^ D * ↑(D.choose (D / 2))⌉₊
x✝¹ : { F // FiniteDimensional ℚ ↥F }
K : IntermediateField ℚ A
hK₀ : FiniteDimensional ℚ ↥K
x✝ : ⟨K, hK₀⟩ ∈ {K | {w | w.IsComplex}.Nonempty ∧ |discr ↥↑K| ≤ ↑N}
hK₁ : {w | w.IsComplex}.Nonempty
hK₂ : |discr ↥↑⟨K, hK₀⟩| ≤ ↑N
⊢ ∃ x,
    (∃ i,
        ∃ (_ : i.natDegree ≤ D ∧ ∀ (i_1 : ℕ), i.coeff i_1 ∈ Set.Icc (-↑C) ↑C),
          x ∈ ↑(Polynomial.map (algebraMap ℤ A) i).roots.toFinset) ∧
      K = ℚ⟮x⟯

Tactic:
have : CharZero K := SubsemiringClass.instCharZero K

Goal state after:
A : Type u_2
inst✝¹ : Field A
inst✝ : CharZero A
N : ℕ
D : ℕ := rankOfDiscrBdd N
B : ℝ≥0 := boundOfDiscBdd N
C : ℕ := ⌈max (sqrt (1 + B ^ 2)) 1 ^ D * ↑(D.choose (D / 2))⌉₊
x✝¹ : { F // FiniteDimensional ℚ ↥F }
K : IntermediateField ℚ A
hK₀ : FiniteDimensional ℚ ↥K
x✝ : ⟨K, hK₀⟩ ∈ {K | {w | w.IsComplex}.Nonempty ∧ |discr ↥↑K| ≤ ↑N}
hK₁ : {w | w.IsComplex}.Nonempty
hK₂ : |discr ↥↑⟨K, hK₀⟩| ≤ ↑N
this : CharZero ↥K
⊢ ∃ x,
    (∃ i,
        ∃ (_ : i.natDegree ≤ D ∧ ∀ (i_1 : ℕ), i.coeff i_1 ∈ Set.Icc (-↑C) ↑C),
          x ∈ ↑(Polynomial.map (algebraMap ℤ A) i).roots.toFinset) ∧
      K = ℚ⟮x⟯
Module: Mathlib.RingTheory.FractionalIdeal.Extended

Goal state before:
pp: case mp
A : Type u_1
inst✝⁷ : CommRing A
B : Type u_2
inst✝⁶ : CommRing B
f : A →+* B
K : Type u_3
M : Submonoid A
inst✝⁵ : CommRing K
inst✝⁴ : Algebra A K
inst✝³ : IsLocalization M K
L : Type u_4
N : Submonoid B
inst✝² : CommRing L
inst✝¹ : Algebra B L
inst✝ : IsLocalization N L
hf : M ≤ Submonoid.comap f N
I : FractionalIdeal M K
x : L
⊢ x ∈ extended L hf I → x ∈ span B (⇑(IsLocalization.map L f hf) '' ↑I)

pp: case mpr
A : Type u_1
inst✝⁷ : CommRing A
B : Type u_2
inst✝⁶ : CommRing B
f : A →+* B
K : Type u_3
M : Submonoid A
inst✝⁵ : CommRing K
inst✝⁴ : Algebra A K
inst✝³ : IsLocalization M K
L : Type u_4
N : Submonoid B
inst✝² : CommRing L
inst✝¹ : Algebra B L
inst✝ : IsLocalization N L
hf : M ≤ Submonoid.comap f N
I : FractionalIdeal M K
x : L
⊢ x ∈ span B (⇑(IsLocalization.map L f hf) '' ↑I) → x ∈ extended L hf I

Tactic:
<;>

Goal state after:
case mp
A : Type u_1
inst✝⁷ : CommRing A
B : Type u_2
inst✝⁶ : CommRing B
f : A →+* B
K : Type u_3
M : Submonoid A
inst✝⁵ : CommRing K
inst✝⁴ : Algebra A K
inst✝³ : IsLocalization M K
L : Type u_4
N : Submonoid B
inst✝² : CommRing L
inst✝¹ : Algebra B L
inst✝ : IsLocalization N L
hf : M ≤ Submonoid.comap f N
I : FractionalIdeal M K
x : L
⊢ x ∈ extended L hf I → x ∈ span B (⇑(IsLocalization.map L f hf) '' ↑I)

case mpr
A : Type u_1
inst✝⁷ : CommRing A
B : Type u_2
inst✝⁶ : CommRing B
f : A →+* B
K : Type u_3
M : Submonoid A
inst✝⁵ : CommRing K
inst✝⁴ : Algebra A K
inst✝³ : IsLocalization M K
L : Type u_4
N : Submonoid B
inst✝² : CommRing L
inst✝¹ : Algebra B L
inst✝ : IsLocalization N L
hf : M ≤ Submonoid.comap f N
I : FractionalIdeal M K
x : L
⊢ x ∈ span B (⇑(IsLocalization.map L f hf) '' ↑I) → x ∈ extended L hf I
Module: Mathlib.RingTheory.LocalRing.Quotient

Goal state before:
pp: R : Type u_1
S : Type u_2
inst✝⁶ : CommRing R
inst✝⁵ : CommRing S
inst✝⁴ : Algebra R S
inst✝³ : IsLocalRing R
inst✝² : Module.Finite R S
inst✝¹ : Free R S
ι : Type u_4
inst✝ : Fintype ι
b : Basis ι R S
x : S
i : ι
⊢ (Ideal.Quotient.mk pS) x = ∑ x_1, (Ideal.Quotient.mk pS) ((b.repr x) x_1 • b x_1)

Tactic:
← map_sum,

Goal state after:
R : Type u_1
S : Type u_2
inst✝⁶ : CommRing R
inst✝⁵ : CommRing S
inst✝⁴ : Algebra R S
inst✝³ : IsLocalRing R
inst✝² : Module.Finite R S
inst✝¹ : Free R S
ι : Type u_4
inst✝ : Fintype ι
b : Basis ι R S
x : S
i : ι
⊢ (Ideal.Quotient.mk pS) x = (Ideal.Quotient.mk pS) (∑ x_1, (b.repr x) x_1 • b x_1)
Module: Mathlib.NumberTheory.NumberField.Discriminant.Basic

Goal state before:
pp: A : Type u_2
inst✝¹ : Field A
inst✝ : CharZero A
N : ℕ
K : IntermediateField ℚ A
hK₀ : FiniteDimensional ℚ ↥K
hK₁ : ⟨K, hK₀⟩ ∈ {K | |discr ↥↑K| ≤ ↑N}
⊢ ⟨K, hK₀⟩ ∈ {K | {w | w.IsReal}.Nonempty ∧ |discr ↥↑K| ≤ ↑N} ∪ {K | {w | w.IsComplex}.Nonempty ∧ |discr ↥↑K| ≤ ↑N}

Tactic:
have : CharZero K := SubsemiringClass.instCharZero K

Goal state after:
A : Type u_2
inst✝¹ : Field A
inst✝ : CharZero A
N : ℕ
K : IntermediateField ℚ A
hK₀ : FiniteDimensional ℚ ↥K
hK₁ : ⟨K, hK₀⟩ ∈ {K | |discr ↥↑K| ≤ ↑N}
this : CharZero ↥K
⊢ ⟨K, hK₀⟩ ∈ {K | {w | w.IsReal}.Nonempty ∧ |discr ↥↑K| ≤ ↑N} ∪ {K | {w | w.IsComplex}.Nonempty ∧ |discr ↥↑K| ≤ ↑N}
Module: Mathlib.RingTheory.DedekindDomain.PID

Goal state before:
pp: case pos.hle
R : Type u_1
inst✝¹ : CommRing R
inst✝ : IsDedekindDomain R
x : R
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hP : Q.IsPrime
x_mem : x ∈ Q
hxP2 : x ∉ Q ^ 2
hxQ : ∀ (Q_1 : Ideal R), Q_1.IsPrime → Q_1 ≠ Q → x ∉ Q_1
hP0 : ¬Q = ⊥
⊢ span {x} ≤ Q ^ 1

pp: case hlt
R : Type u_1
inst✝¹ : CommRing R
inst✝ : IsDedekindDomain R
x : R
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hP : Q.IsPrime
x_mem : x ∈ Q
hxP2 : x ∉ Q ^ 2
hxQ : ∀ (Q_1 : Ideal R), Q_1.IsPrime → Q_1 ≠ Q → x ∉ Q_1
hP0 : ¬Q = ⊥
⊢ ¬span {x} ≤ Q ^ (1 + 1)

Tactic:
<;>

Goal state after:
case pos.hle
R : Type u_1
inst✝¹ : CommRing R
inst✝ : IsDedekindDomain R
x : R
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hP : Q.IsPrime
x_mem : x ∈ Q
hxP2 : x ∉ Q ^ 2
hxQ : ∀ (Q_1 : Ideal R), Q_1.IsPrime → Q_1 ≠ Q → x ∉ Q_1
hP0 : ¬Q = ⊥
⊢ span {x} ≤ Q ^ 1

case hlt
R : Type u_1
inst✝¹ : CommRing R
inst✝ : IsDedekindDomain R
x : R
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hP : Q.IsPrime
x_mem : x ∈ Q
hxP2 : x ∉ Q ^ 2
hxQ : ∀ (Q_1 : Ideal R), Q_1.IsPrime → Q_1 ≠ Q → x ∉ Q_1
hP0 : ¬Q = ⊥
⊢ ¬span {x} ≤ Q ^ (1 + 1)
Module: Mathlib.RingTheory.DedekindDomain.PID

Goal state before:
pp: case pos.hle
R : Type u_1
inst✝¹ : CommRing R
P : Ideal R
hP : P.IsPrime
inst✝ : IsDedekindDomain R
x : R
x_mem : x ∈ P
hxP2 : x ∉ P ^ 2
hxQ : ∀ (Q : Ideal R), Q.IsPrime → Q ≠ P → x ∉ Q
hP0 : ¬P = ⊥
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hQ : ¬Q = P
hQp : Q.IsPrime
⊢ span {x} ≤ Q ^ 0

pp: case hlt
R : Type u_1
inst✝¹ : CommRing R
P : Ideal R
hP : P.IsPrime
inst✝ : IsDedekindDomain R
x : R
x_mem : x ∈ P
hxP2 : x ∉ P ^ 2
hxQ : ∀ (Q : Ideal R), Q.IsPrime → Q ≠ P → x ∉ Q
hP0 : ¬P = ⊥
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hQ : ¬Q = P
hQp : Q.IsPrime
⊢ ¬span {x} ≤ Q ^ (0 + 1)

Tactic:
<;>

Goal state after:
case pos.hle
R : Type u_1
inst✝¹ : CommRing R
P : Ideal R
hP : P.IsPrime
inst✝ : IsDedekindDomain R
x : R
x_mem : x ∈ P
hxP2 : x ∉ P ^ 2
hxQ : ∀ (Q : Ideal R), Q.IsPrime → Q ≠ P → x ∉ Q
hP0 : ¬P = ⊥
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hQ : ¬Q = P
hQp : Q.IsPrime
⊢ span {x} ≤ Q ^ 0

case hlt
R : Type u_1
inst✝¹ : CommRing R
P : Ideal R
hP : P.IsPrime
inst✝ : IsDedekindDomain R
x : R
x_mem : x ∈ P
hxP2 : x ∉ P ^ 2
hxQ : ∀ (Q : Ideal R), Q.IsPrime → Q ≠ P → x ∉ Q
hP0 : ¬P = ⊥
hspan0 : span {x} ≠ ⊥
Q : Ideal R
hQ : ¬Q = P
hQp : Q.IsPrime
⊢ ¬span {x} ≤ Q ^ (0 + 1)