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Definition df-lvols 35258
 Description: Define the set of all 3-dimensional "lattice volumes" (lattice elements which cover a plane) in a Hilbert lattice 𝑘, in other words all elements of height 4 (or lattice dimension 4 or projective dimension 3). (Contributed by NM, 1-Jul-2012.)
Assertion
Ref Expression
df-lvols LVols = (𝑘 ∈ V ↦ {𝑥 ∈ (Base‘𝑘) ∣ ∃𝑝 ∈ (LPlanes‘𝑘)𝑝( ⋖ ‘𝑘)𝑥})
Distinct variable group:   𝑘,𝑝,𝑥

Detailed syntax breakdown of Definition df-lvols
StepHypRef Expression
1 clvol 35251 . 2 class LVols
2 vk . . 3 setvar 𝑘
3 cvv 3328 . . 3 class V
4 vp . . . . . . 7 setvar 𝑝
54cv 1619 . . . . . 6 class 𝑝
6 vx . . . . . . 7 setvar 𝑥
76cv 1619 . . . . . 6 class 𝑥
82cv 1619 . . . . . . 7 class 𝑘
9 ccvr 35021 . . . . . . 7 class
108, 9cfv 6037 . . . . . 6 class ( ⋖ ‘𝑘)
115, 7, 10wbr 4792 . . . . 5 wff 𝑝( ⋖ ‘𝑘)𝑥
12 clpl 35250 . . . . . 6 class LPlanes
138, 12cfv 6037 . . . . 5 class (LPlanes‘𝑘)
1411, 4, 13wrex 3039 . . . 4 wff 𝑝 ∈ (LPlanes‘𝑘)𝑝( ⋖ ‘𝑘)𝑥
15 cbs 16030 . . . . 5 class Base
168, 15cfv 6037 . . . 4 class (Base‘𝑘)
1714, 6, 16crab 3042 . . 3 class {𝑥 ∈ (Base‘𝑘) ∣ ∃𝑝 ∈ (LPlanes‘𝑘)𝑝( ⋖ ‘𝑘)𝑥}
182, 3, 17cmpt 4869 . 2 class (𝑘 ∈ V ↦ {𝑥 ∈ (Base‘𝑘) ∣ ∃𝑝 ∈ (LPlanes‘𝑘)𝑝( ⋖ ‘𝑘)𝑥})
191, 18wceq 1620 1 wff LVols = (𝑘 ∈ V ↦ {𝑥 ∈ (Base‘𝑘) ∣ ∃𝑝 ∈ (LPlanes‘𝑘)𝑝( ⋖ ‘𝑘)𝑥})
 Colors of variables: wff setvar class This definition is referenced by:  lvolset  35330
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