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Theorem arglem1N 38999
Description: Lemma for Desargues's law. Theorem 13.3 of [Crawley] p. 110, third and fourth lines from bottom. In these lemmas, 𝑃, 𝑄, 𝑅, 𝑆, 𝑇, π‘ˆ, 𝐢, 𝐷, 𝐸, 𝐹, and 𝐺 represent Crawley's a0, a1, a2, b0, b1, b2, c, z0, z1, z2, and p respectively. (Contributed by NM, 28-Jun-2012.) (New usage is discouraged.)
Hypotheses
Ref Expression
arglem1.j ∨ = (joinβ€˜πΎ)
arglem1.m ∧ = (meetβ€˜πΎ)
arglem1.a 𝐴 = (Atomsβ€˜πΎ)
arglem1.f 𝐹 = ((𝑃 ∨ 𝑄) ∧ (𝑆 ∨ 𝑇))
arglem1.g 𝐺 = ((𝑃 ∨ 𝑆) ∧ (𝑄 ∨ 𝑇))
Assertion
Ref Expression
arglem1N ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝐹 ∈ 𝐴)

Proof of Theorem arglem1N
StepHypRef Expression
1 arglem1.f . 2 𝐹 = ((𝑃 ∨ 𝑄) ∧ (𝑆 ∨ 𝑇))
2 simpl11 1249 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝐾 ∈ HL)
32hllatd 38172 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝐾 ∈ Lat)
4 simpl12 1250 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑃 ∈ 𝐴)
5 eqid 2733 . . . . . . 7 (Baseβ€˜πΎ) = (Baseβ€˜πΎ)
6 arglem1.a . . . . . . 7 𝐴 = (Atomsβ€˜πΎ)
75, 6atbase 38097 . . . . . 6 (𝑃 ∈ 𝐴 β†’ 𝑃 ∈ (Baseβ€˜πΎ))
84, 7syl 17 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑃 ∈ (Baseβ€˜πΎ))
9 simpl13 1251 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑄 ∈ 𝐴)
105, 6atbase 38097 . . . . . 6 (𝑄 ∈ 𝐴 β†’ 𝑄 ∈ (Baseβ€˜πΎ))
119, 10syl 17 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑄 ∈ (Baseβ€˜πΎ))
12 simpl21 1252 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑆 ∈ 𝐴)
135, 6atbase 38097 . . . . . 6 (𝑆 ∈ 𝐴 β†’ 𝑆 ∈ (Baseβ€˜πΎ))
1412, 13syl 17 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑆 ∈ (Baseβ€˜πΎ))
15 simpl22 1253 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑇 ∈ 𝐴)
165, 6atbase 38097 . . . . . 6 (𝑇 ∈ 𝐴 β†’ 𝑇 ∈ (Baseβ€˜πΎ))
1715, 16syl 17 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑇 ∈ (Baseβ€˜πΎ))
18 arglem1.j . . . . . 6 ∨ = (joinβ€˜πΎ)
195, 18latj4 18438 . . . . 5 ((𝐾 ∈ Lat ∧ (𝑃 ∈ (Baseβ€˜πΎ) ∧ 𝑄 ∈ (Baseβ€˜πΎ)) ∧ (𝑆 ∈ (Baseβ€˜πΎ) ∧ 𝑇 ∈ (Baseβ€˜πΎ))) β†’ ((𝑃 ∨ 𝑄) ∨ (𝑆 ∨ 𝑇)) = ((𝑃 ∨ 𝑆) ∨ (𝑄 ∨ 𝑇)))
203, 8, 11, 14, 17, 19syl122anc 1380 . . . 4 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ ((𝑃 ∨ 𝑄) ∨ (𝑆 ∨ 𝑇)) = ((𝑃 ∨ 𝑆) ∨ (𝑄 ∨ 𝑇)))
21 arglem1.g . . . . . 6 𝐺 = ((𝑃 ∨ 𝑆) ∧ (𝑄 ∨ 𝑇))
22 simpr 486 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝐺 ∈ 𝐴)
2321, 22eqeltrrid 2839 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ ((𝑃 ∨ 𝑆) ∧ (𝑄 ∨ 𝑇)) ∈ 𝐴)
24 simpl31 1255 . . . . . . 7 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑃 β‰  𝑆)
25 eqid 2733 . . . . . . . 8 (LLinesβ€˜πΎ) = (LLinesβ€˜πΎ)
2618, 6, 25llni2 38321 . . . . . . 7 (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴) ∧ 𝑃 β‰  𝑆) β†’ (𝑃 ∨ 𝑆) ∈ (LLinesβ€˜πΎ))
272, 4, 12, 24, 26syl31anc 1374 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ (𝑃 ∨ 𝑆) ∈ (LLinesβ€˜πΎ))
28 simpl32 1256 . . . . . . 7 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑄 β‰  𝑇)
2918, 6, 25llni2 38321 . . . . . . 7 (((𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ 𝑄 β‰  𝑇) β†’ (𝑄 ∨ 𝑇) ∈ (LLinesβ€˜πΎ))
302, 9, 15, 28, 29syl31anc 1374 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ (𝑄 ∨ 𝑇) ∈ (LLinesβ€˜πΎ))
31 arglem1.m . . . . . . 7 ∧ = (meetβ€˜πΎ)
32 eqid 2733 . . . . . . 7 (LPlanesβ€˜πΎ) = (LPlanesβ€˜πΎ)
3318, 31, 6, 25, 322llnmj 38369 . . . . . 6 ((𝐾 ∈ HL ∧ (𝑃 ∨ 𝑆) ∈ (LLinesβ€˜πΎ) ∧ (𝑄 ∨ 𝑇) ∈ (LLinesβ€˜πΎ)) β†’ (((𝑃 ∨ 𝑆) ∧ (𝑄 ∨ 𝑇)) ∈ 𝐴 ↔ ((𝑃 ∨ 𝑆) ∨ (𝑄 ∨ 𝑇)) ∈ (LPlanesβ€˜πΎ)))
342, 27, 30, 33syl3anc 1372 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ (((𝑃 ∨ 𝑆) ∧ (𝑄 ∨ 𝑇)) ∈ 𝐴 ↔ ((𝑃 ∨ 𝑆) ∨ (𝑄 ∨ 𝑇)) ∈ (LPlanesβ€˜πΎ)))
3523, 34mpbid 231 . . . 4 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ ((𝑃 ∨ 𝑆) ∨ (𝑄 ∨ 𝑇)) ∈ (LPlanesβ€˜πΎ))
3620, 35eqeltrd 2834 . . 3 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ ((𝑃 ∨ 𝑄) ∨ (𝑆 ∨ 𝑇)) ∈ (LPlanesβ€˜πΎ))
37 simpl23 1254 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑃 β‰  𝑄)
3818, 6, 25llni2 38321 . . . . 5 (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ 𝑃 β‰  𝑄) β†’ (𝑃 ∨ 𝑄) ∈ (LLinesβ€˜πΎ))
392, 4, 9, 37, 38syl31anc 1374 . . . 4 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ (𝑃 ∨ 𝑄) ∈ (LLinesβ€˜πΎ))
40 simpl33 1257 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝑆 β‰  𝑇)
4118, 6, 25llni2 38321 . . . . 5 (((𝐾 ∈ HL ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ 𝑆 β‰  𝑇) β†’ (𝑆 ∨ 𝑇) ∈ (LLinesβ€˜πΎ))
422, 12, 15, 40, 41syl31anc 1374 . . . 4 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ (𝑆 ∨ 𝑇) ∈ (LLinesβ€˜πΎ))
4318, 31, 6, 25, 322llnmj 38369 . . . 4 ((𝐾 ∈ HL ∧ (𝑃 ∨ 𝑄) ∈ (LLinesβ€˜πΎ) ∧ (𝑆 ∨ 𝑇) ∈ (LLinesβ€˜πΎ)) β†’ (((𝑃 ∨ 𝑄) ∧ (𝑆 ∨ 𝑇)) ∈ 𝐴 ↔ ((𝑃 ∨ 𝑄) ∨ (𝑆 ∨ 𝑇)) ∈ (LPlanesβ€˜πΎ)))
442, 39, 42, 43syl3anc 1372 . . 3 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ (((𝑃 ∨ 𝑄) ∧ (𝑆 ∨ 𝑇)) ∈ 𝐴 ↔ ((𝑃 ∨ 𝑄) ∨ (𝑆 ∨ 𝑇)) ∈ (LPlanesβ€˜πΎ)))
4536, 44mpbird 257 . 2 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ ((𝑃 ∨ 𝑄) ∧ (𝑆 ∨ 𝑇)) ∈ 𝐴)
461, 45eqeltrid 2838 1 ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑃 β‰  𝑄) ∧ (𝑃 β‰  𝑆 ∧ 𝑄 β‰  𝑇 ∧ 𝑆 β‰  𝑇)) ∧ 𝐺 ∈ 𝐴) β†’ 𝐹 ∈ 𝐴)
Colors of variables: wff setvar class
Syntax hints:   β†’ wi 4   ↔ wb 205   ∧ wa 397   ∧ w3a 1088   = wceq 1542   ∈ wcel 2107   β‰  wne 2941  β€˜cfv 6540  (class class class)co 7404  Basecbs 17140  joincjn 18260  meetcmee 18261  Latclat 18380  Atomscatm 38071  HLchlt 38158  LLinesclln 38300  LPlanesclpl 38301
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2155  ax-12 2172  ax-ext 2704  ax-rep 5284  ax-sep 5298  ax-nul 5305  ax-pow 5362  ax-pr 5426  ax-un 7720
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-nf 1787  df-sb 2069  df-mo 2535  df-eu 2564  df-clab 2711  df-cleq 2725  df-clel 2811  df-nfc 2886  df-ne 2942  df-ral 3063  df-rex 3072  df-rmo 3377  df-reu 3378  df-rab 3434  df-v 3477  df-sbc 3777  df-csb 3893  df-dif 3950  df-un 3952  df-in 3954  df-ss 3964  df-nul 4322  df-if 4528  df-pw 4603  df-sn 4628  df-pr 4630  df-op 4634  df-uni 4908  df-iun 4998  df-br 5148  df-opab 5210  df-mpt 5231  df-id 5573  df-xp 5681  df-rel 5682  df-cnv 5683  df-co 5684  df-dm 5685  df-rn 5686  df-res 5687  df-ima 5688  df-iota 6492  df-fun 6542  df-fn 6543  df-f 6544  df-f1 6545  df-fo 6546  df-f1o 6547  df-fv 6548  df-riota 7360  df-ov 7407  df-oprab 7408  df-proset 18244  df-poset 18262  df-plt 18279  df-lub 18295  df-glb 18296  df-join 18297  df-meet 18298  df-p0 18374  df-lat 18381  df-clat 18448  df-oposet 37984  df-ol 37986  df-oml 37987  df-covers 38074  df-ats 38075  df-atl 38106  df-cvlat 38130  df-hlat 38159  df-llines 38307  df-lplanes 38308
This theorem is referenced by: (None)
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