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Definition df-lvols 38371
Description: Define the set of all 3-dimensional "lattice volumes" (lattice elements which cover a plane) in a Hilbert lattice π‘˜, 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 = (π‘˜ ∈ V ↦ {π‘₯ ∈ (Baseβ€˜π‘˜) ∣ βˆƒπ‘ ∈ (LPlanesβ€˜π‘˜)𝑝( β‹– β€˜π‘˜)π‘₯})
Distinct variable group:   π‘˜,𝑝,π‘₯

Detailed syntax breakdown of Definition df-lvols
StepHypRef Expression
1 clvol 38364 . 2 class LVols
2 vk . . 3 setvar π‘˜
3 cvv 3475 . . 3 class V
4 vp . . . . . . 7 setvar 𝑝
54cv 1541 . . . . . 6 class 𝑝
6 vx . . . . . . 7 setvar π‘₯
76cv 1541 . . . . . 6 class π‘₯
82cv 1541 . . . . . . 7 class π‘˜
9 ccvr 38132 . . . . . . 7 class β‹–
108, 9cfv 6544 . . . . . 6 class ( β‹– β€˜π‘˜)
115, 7, 10wbr 5149 . . . . 5 wff 𝑝( β‹– β€˜π‘˜)π‘₯
12 clpl 38363 . . . . . 6 class LPlanes
138, 12cfv 6544 . . . . 5 class (LPlanesβ€˜π‘˜)
1411, 4, 13wrex 3071 . . . 4 wff βˆƒπ‘ ∈ (LPlanesβ€˜π‘˜)𝑝( β‹– β€˜π‘˜)π‘₯
15 cbs 17144 . . . . 5 class Base
168, 15cfv 6544 . . . 4 class (Baseβ€˜π‘˜)
1714, 6, 16crab 3433 . . 3 class {π‘₯ ∈ (Baseβ€˜π‘˜) ∣ βˆƒπ‘ ∈ (LPlanesβ€˜π‘˜)𝑝( β‹– β€˜π‘˜)π‘₯}
182, 3, 17cmpt 5232 . 2 class (π‘˜ ∈ V ↦ {π‘₯ ∈ (Baseβ€˜π‘˜) ∣ βˆƒπ‘ ∈ (LPlanesβ€˜π‘˜)𝑝( β‹– β€˜π‘˜)π‘₯})
191, 18wceq 1542 1 wff LVols = (π‘˜ ∈ V ↦ {π‘₯ ∈ (Baseβ€˜π‘˜) ∣ βˆƒπ‘ ∈ (LPlanesβ€˜π‘˜)𝑝( β‹– β€˜π‘˜)π‘₯})
Colors of variables: wff setvar class
This definition is referenced by:  lvolset  38443
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