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Theorem islpln5 37476
Description: The predicate "is a lattice plane" in terms of atoms. (Contributed by NM, 24-Jun-2012.)
Hypotheses
Ref Expression
islpln5.b 𝐵 = (Base‘𝐾)
islpln5.l = (le‘𝐾)
islpln5.j = (join‘𝐾)
islpln5.a 𝐴 = (Atoms‘𝐾)
islpln5.p 𝑃 = (LPlanes‘𝐾)
Assertion
Ref Expression
islpln5 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (𝑋𝑃 ↔ ∃𝑝𝐴𝑞𝐴𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
Distinct variable groups:   𝑞,𝑝,𝑟,𝐴   𝐵,𝑝,𝑞,𝑟   ,𝑝,𝑞,𝑟   𝐾,𝑝,𝑞,𝑟   ,𝑝,𝑞,𝑟   𝑋,𝑝,𝑞,𝑟
Allowed substitution hints:   𝑃(𝑟,𝑞,𝑝)

Proof of Theorem islpln5
Dummy variable 𝑦 is distinct from all other variables.
StepHypRef Expression
1 islpln5.b . . 3 𝐵 = (Base‘𝐾)
2 islpln5.l . . 3 = (le‘𝐾)
3 islpln5.j . . 3 = (join‘𝐾)
4 islpln5.a . . 3 𝐴 = (Atoms‘𝐾)
5 eqid 2738 . . 3 (LLines‘𝐾) = (LLines‘𝐾)
6 islpln5.p . . 3 𝑃 = (LPlanes‘𝐾)
71, 2, 3, 4, 5, 6islpln3 37474 . 2 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (𝑋𝑃 ↔ ∃𝑦 ∈ (LLines‘𝐾)∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟))))
8 df-rex 3069 . . 3 (∃𝑦 ∈ (LLines‘𝐾)∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟)) ↔ ∃𝑦(𝑦 ∈ (LLines‘𝐾) ∧ ∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟))))
9 r19.41v 3273 . . . . . . . . . 10 (∃𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ (∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
10 an13 643 . . . . . . . . . 10 ((∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ (𝑦 = (𝑝 𝑞) ∧ (𝑝𝑞 ∧ ∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))))))
119, 10bitri 274 . . . . . . . . 9 (∃𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ (𝑦 = (𝑝 𝑞) ∧ (𝑝𝑞 ∧ ∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))))))
1211exbii 1851 . . . . . . . 8 (∃𝑦𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑦(𝑦 = (𝑝 𝑞) ∧ (𝑝𝑞 ∧ ∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))))))
13 ovex 7288 . . . . . . . . 9 (𝑝 𝑞) ∈ V
14 an12 641 . . . . . . . . . . . 12 ((𝑝𝑞 ∧ (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))) ↔ (𝑦𝐵 ∧ (𝑝𝑞 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))))
15 eleq1 2826 . . . . . . . . . . . . 13 (𝑦 = (𝑝 𝑞) → (𝑦𝐵 ↔ (𝑝 𝑞) ∈ 𝐵))
16 breq2 5074 . . . . . . . . . . . . . . . . 17 (𝑦 = (𝑝 𝑞) → (𝑟 𝑦𝑟 (𝑝 𝑞)))
1716notbid 317 . . . . . . . . . . . . . . . 16 (𝑦 = (𝑝 𝑞) → (¬ 𝑟 𝑦 ↔ ¬ 𝑟 (𝑝 𝑞)))
18 oveq1 7262 . . . . . . . . . . . . . . . . 17 (𝑦 = (𝑝 𝑞) → (𝑦 𝑟) = ((𝑝 𝑞) 𝑟))
1918eqeq2d 2749 . . . . . . . . . . . . . . . 16 (𝑦 = (𝑝 𝑞) → (𝑋 = (𝑦 𝑟) ↔ 𝑋 = ((𝑝 𝑞) 𝑟)))
2017, 19anbi12d 630 . . . . . . . . . . . . . . 15 (𝑦 = (𝑝 𝑞) → ((¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)) ↔ (¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
2120anbi2d 628 . . . . . . . . . . . . . 14 (𝑦 = (𝑝 𝑞) → ((𝑝𝑞 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ (𝑝𝑞 ∧ (¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)))))
22 3anass 1093 . . . . . . . . . . . . . 14 ((𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)) ↔ (𝑝𝑞 ∧ (¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
2321, 22bitr4di 288 . . . . . . . . . . . . 13 (𝑦 = (𝑝 𝑞) → ((𝑝𝑞 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
2415, 23anbi12d 630 . . . . . . . . . . . 12 (𝑦 = (𝑝 𝑞) → ((𝑦𝐵 ∧ (𝑝𝑞 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))) ↔ ((𝑝 𝑞) ∈ 𝐵 ∧ (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)))))
2514, 24syl5bb 282 . . . . . . . . . . 11 (𝑦 = (𝑝 𝑞) → ((𝑝𝑞 ∧ (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))) ↔ ((𝑝 𝑞) ∈ 𝐵 ∧ (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)))))
2625rexbidv 3225 . . . . . . . . . 10 (𝑦 = (𝑝 𝑞) → (∃𝑟𝐴 (𝑝𝑞 ∧ (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))) ↔ ∃𝑟𝐴 ((𝑝 𝑞) ∈ 𝐵 ∧ (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)))))
27 r19.42v 3276 . . . . . . . . . 10 (∃𝑟𝐴 (𝑝𝑞 ∧ (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))) ↔ (𝑝𝑞 ∧ ∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))))
28 r19.42v 3276 . . . . . . . . . 10 (∃𝑟𝐴 ((𝑝 𝑞) ∈ 𝐵 ∧ (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))) ↔ ((𝑝 𝑞) ∈ 𝐵 ∧ ∃𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
2926, 27, 283bitr3g 312 . . . . . . . . 9 (𝑦 = (𝑝 𝑞) → ((𝑝𝑞 ∧ ∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))) ↔ ((𝑝 𝑞) ∈ 𝐵 ∧ ∃𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)))))
3013, 29ceqsexv 3469 . . . . . . . 8 (∃𝑦(𝑦 = (𝑝 𝑞) ∧ (𝑝𝑞 ∧ ∃𝑟𝐴 (𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))))) ↔ ((𝑝 𝑞) ∈ 𝐵 ∧ ∃𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
3112, 30bitri 274 . . . . . . 7 (∃𝑦𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ((𝑝 𝑞) ∈ 𝐵 ∧ ∃𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
32 simpll 763 . . . . . . . . 9 (((𝐾 ∈ HL ∧ 𝑋𝐵) ∧ (𝑝𝐴𝑞𝐴)) → 𝐾 ∈ HL)
33 simprl 767 . . . . . . . . 9 (((𝐾 ∈ HL ∧ 𝑋𝐵) ∧ (𝑝𝐴𝑞𝐴)) → 𝑝𝐴)
34 simprr 769 . . . . . . . . 9 (((𝐾 ∈ HL ∧ 𝑋𝐵) ∧ (𝑝𝐴𝑞𝐴)) → 𝑞𝐴)
351, 3, 4hlatjcl 37308 . . . . . . . . 9 ((𝐾 ∈ HL ∧ 𝑝𝐴𝑞𝐴) → (𝑝 𝑞) ∈ 𝐵)
3632, 33, 34, 35syl3anc 1369 . . . . . . . 8 (((𝐾 ∈ HL ∧ 𝑋𝐵) ∧ (𝑝𝐴𝑞𝐴)) → (𝑝 𝑞) ∈ 𝐵)
3736biantrurd 532 . . . . . . 7 (((𝐾 ∈ HL ∧ 𝑋𝐵) ∧ (𝑝𝐴𝑞𝐴)) → (∃𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)) ↔ ((𝑝 𝑞) ∈ 𝐵 ∧ ∃𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)))))
3831, 37bitr4id 289 . . . . . 6 (((𝐾 ∈ HL ∧ 𝑋𝐵) ∧ (𝑝𝐴𝑞𝐴)) → (∃𝑦𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
39382rexbidva 3227 . . . . 5 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑝𝐴𝑞𝐴𝑦𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑝𝐴𝑞𝐴𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
40 rexcom4 3179 . . . . . . 7 (∃𝑞𝐴𝑦𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑦𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
4140rexbii 3177 . . . . . 6 (∃𝑝𝐴𝑞𝐴𝑦𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑝𝐴𝑦𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
42 rexcom4 3179 . . . . . 6 (∃𝑝𝐴𝑦𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑦𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
4341, 42bitri 274 . . . . 5 (∃𝑝𝐴𝑞𝐴𝑦𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑦𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
4439, 43bitr3di 285 . . . 4 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑝𝐴𝑞𝐴𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)) ↔ ∃𝑦𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞)))))
45 rexcom 3281 . . . . . . . . 9 (∃𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑟𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
4645rexbii 3177 . . . . . . . 8 (∃𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑝𝐴𝑟𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
47 rexcom 3281 . . . . . . . 8 (∃𝑝𝐴𝑟𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑟𝐴𝑝𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
4846, 47bitri 274 . . . . . . 7 (∃𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑟𝐴𝑝𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
491, 3, 4, 5islln2 37452 . . . . . . . . . . 11 (𝐾 ∈ HL → (𝑦 ∈ (LLines‘𝐾) ↔ (𝑦𝐵 ∧ ∃𝑝𝐴𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞)))))
5049adantr 480 . . . . . . . . . 10 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (𝑦 ∈ (LLines‘𝐾) ↔ (𝑦𝐵 ∧ ∃𝑝𝐴𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞)))))
5150anbi1d 629 . . . . . . . . 9 ((𝐾 ∈ HL ∧ 𝑋𝐵) → ((𝑦 ∈ (LLines‘𝐾) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ ((𝑦𝐵 ∧ ∃𝑝𝐴𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))))
52 r19.42v 3276 . . . . . . . . . 10 (∃𝑝𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ ∃𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ ∃𝑝𝐴𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))))
53 r19.42v 3276 . . . . . . . . . . 11 (∃𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ ∃𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))))
5453rexbii 3177 . . . . . . . . . 10 (∃𝑝𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑝𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ ∃𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))))
55 an32 642 . . . . . . . . . 10 (((𝑦𝐵 ∧ ∃𝑝𝐴𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ ∃𝑝𝐴𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))))
5652, 54, 553bitr4ri 303 . . . . . . . . 9 (((𝑦𝐵 ∧ ∃𝑝𝐴𝑞𝐴 (𝑝𝑞𝑦 = (𝑝 𝑞))) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ ∃𝑝𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))))
5751, 56bitrdi 286 . . . . . . . 8 ((𝐾 ∈ HL ∧ 𝑋𝐵) → ((𝑦 ∈ (LLines‘𝐾) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ ∃𝑝𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞)))))
5857rexbidv 3225 . . . . . . 7 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑟𝐴 (𝑦 ∈ (LLines‘𝐾) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ ∃𝑟𝐴𝑝𝐴𝑞𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞)))))
5948, 58bitr4id 289 . . . . . 6 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑟𝐴 (𝑦 ∈ (LLines‘𝐾) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟)))))
60 r19.42v 3276 . . . . . 6 (∃𝑟𝐴 (𝑦 ∈ (LLines‘𝐾) ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ↔ (𝑦 ∈ (LLines‘𝐾) ∧ ∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟))))
6159, 60bitrdi 286 . . . . 5 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ (𝑦 ∈ (LLines‘𝐾) ∧ ∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟)))))
6261exbidv 1925 . . . 4 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑦𝑝𝐴𝑞𝐴𝑟𝐴 ((𝑦𝐵 ∧ (¬ 𝑟 𝑦𝑋 = (𝑦 𝑟))) ∧ (𝑝𝑞𝑦 = (𝑝 𝑞))) ↔ ∃𝑦(𝑦 ∈ (LLines‘𝐾) ∧ ∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟)))))
6344, 62bitrd 278 . . 3 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑝𝐴𝑞𝐴𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟)) ↔ ∃𝑦(𝑦 ∈ (LLines‘𝐾) ∧ ∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟)))))
648, 63bitr4id 289 . 2 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (∃𝑦 ∈ (LLines‘𝐾)∃𝑟𝐴𝑟 𝑦𝑋 = (𝑦 𝑟)) ↔ ∃𝑝𝐴𝑞𝐴𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
657, 64bitrd 278 1 ((𝐾 ∈ HL ∧ 𝑋𝐵) → (𝑋𝑃 ↔ ∃𝑝𝐴𝑞𝐴𝑟𝐴 (𝑝𝑞 ∧ ¬ 𝑟 (𝑝 𝑞) ∧ 𝑋 = ((𝑝 𝑞) 𝑟))))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 205  wa 395  w3a 1085   = wceq 1539  wex 1783  wcel 2108  wne 2942  wrex 3064   class class class wbr 5070  cfv 6418  (class class class)co 7255  Basecbs 16840  lecple 16895  joincjn 17944  Atomscatm 37204  HLchlt 37291  LLinesclln 37432  LPlanesclpl 37433
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-proset 17928  df-poset 17946  df-plt 17963  df-lub 17979  df-glb 17980  df-join 17981  df-meet 17982  df-p0 18058  df-lat 18065  df-clat 18132  df-oposet 37117  df-ol 37119  df-oml 37120  df-covers 37207  df-ats 37208  df-atl 37239  df-cvlat 37263  df-hlat 37292  df-llines 37439  df-lplanes 37440
This theorem is referenced by:  islpln2  37477  lplni2  37478
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