α : Type u_1
β : Type ?u.51571
inst✝² : MeasurableSpace α
s : SignedMeasure α
μ ν : Measure α
inst✝¹ : IsFiniteMeasure μ
inst✝ : IsFiniteMeasure ν
u v w : Set α
hu : MeasurableSet u
hv : MeasurableSet v
hw : MeasurableSet w
hsu : VectorMeasure.restrict 0 u ≤ VectorMeasure.restrict (-s) u
hw₁ : ↑s w = 0
hw₂ : w ⊆ u
hwt : v ⊆ w
⊢ ↑s v = 0
α : Type u_1
β : Type ?u.51571
inst✝² : MeasurableSpace α
s : SignedMeasure α
μ ν : Measure α
inst✝¹ : IsFiniteMeasure μ
inst✝ : IsFiniteMeasure ν
u v w : Set α
hu : MeasurableSet u
hv : MeasurableSet v
hw : MeasurableSet w
hsu : VectorMeasure.restrict s u ≤ VectorMeasure.restrict 0 u
hw₁ : ↑s w = 0
hw₂ : w ⊆ u
hwt : v ⊆ w
⊢ ↑s v = 0
rw [← s.neg_le_neg_iff _ hu, neg_zero] at hsu
α : Type u_1
β : Type ?u.51571
inst✝² : MeasurableSpace α
s : SignedMeasure α
μ ν : Measure α
inst✝¹ : IsFiniteMeasure μ
inst✝ : IsFiniteMeasure ν
u v w : Set α
hu : MeasurableSet u
hv : MeasurableSet v
hw : MeasurableSet w
hsu : VectorMeasure.restrict 0 u ≤ VectorMeasure.restrict (-s) u
hw₁ : ↑s w = 0
hw₂ : w ⊆ u
hwt : v ⊆ w
this : ↑(-s) w = 0 → w ⊆ u → v ⊆ w → ↑(-s) v = 0
⊢ ↑s v = 0
α : Type u_1
β : Type ?u.51571
inst✝² : MeasurableSpace α
s : SignedMeasure α
μ ν : Measure α
inst✝¹ : IsFiniteMeasure μ
inst✝ : IsFiniteMeasure ν
u v w : Set α
hu : MeasurableSet u
hv : MeasurableSet v
hw : MeasurableSet w
hsu : VectorMeasure.restrict 0 u ≤ VectorMeasure.restrict (-s) u
hw₁ : ↑s w = 0
hw₂ : w ⊆ u
hwt : v ⊆ w
⊢ ↑s v = 0
have := subset_positive_null_set hu hv hw hsu
α : Type u_1
β : Type ?u.51571
inst✝² : MeasurableSpace α
s : SignedMeasure α
μ ν : Measure α
inst✝¹ : IsFiniteMeasure μ
inst✝ : IsFiniteMeasure ν
u v w : Set α
hu : MeasurableSet u
hv : MeasurableSet v
hw : MeasurableSet w
hsu : VectorMeasure.restrict 0 u ≤ VectorMeasure.restrict (-s) u
hw₁ : ↑s w = 0
hw₂ : w ⊆ u
hwt : v ⊆ w
this : ↑s w = 0 → w ⊆ u → v ⊆ w → ↑s v = 0
⊢ ↑s v = 0
α : Type u_1
β : Type ?u.51571
inst✝² : MeasurableSpace α
s : SignedMeasure α
μ ν : Measure α
inst✝¹ : IsFiniteMeasure μ
inst✝ : IsFiniteMeasure ν
u v w : Set α
hu : MeasurableSet u
hv : MeasurableSet v
hw : MeasurableSet w
hsu : VectorMeasure.restrict 0 u ≤ VectorMeasure.restrict (-s) u
hw₁ : ↑s w = 0
hw₂ : w ⊆ u
hwt : v ⊆ w
this : ↑(-s) w = 0 → w ⊆ u → v ⊆ w → ↑(-s) v = 0
⊢ ↑s v = 0
simp only [Pi.neg_apply, neg_eq_zero, coe_neg] at this
no goals
α : Type u_1
β : Type ?u.51571
inst✝² : MeasurableSpace α
s : SignedMeasure α
μ ν : Measure α
inst✝¹ : IsFiniteMeasure μ
inst✝ : IsFiniteMeasure ν
u v w : Set α
hu : MeasurableSet u
hv : MeasurableSet v
hw : MeasurableSet w
hsu : VectorMeasure.restrict 0 u ≤ VectorMeasure.restrict (-s) u
hw₁ : ↑s w = 0
hw₂ : w ⊆ u
hwt : v ⊆ w
this : ↑s w = 0 → w ⊆ u → v ⊆ w → ↑s v = 0
⊢ ↑s v = 0
exact this hw₁ hw₂ hwt