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Theorem trlval2 41412
Description: The value of the trace of a lattice translation, given any atom 𝑃 not under the fiducial co-atom 𝑊. Note: this requires only the weaker assumption 𝐾 ∈ Lat; we use 𝐾 ∈ HL for convenience. (Contributed by NM, 20-May-2012.)
Hypotheses
Ref Expression
trlval2.l ≤ = (le‘𝐾)
trlval2.j ∨ = (join‘𝐾)
trlval2.m ∧ = (meet‘𝐾)
trlval2.a 𝐴 = (Atoms‘𝐾)
trlval2.h 𝐻 = (LHyp‘𝐾)
trlval2.t 𝑇 = ((LTrn‘𝐾)‘𝑊)
trlval2.r 𝑅 = ((trL‘𝐾)‘𝑊)
Assertion
Ref Expression
trlval2 (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝑅‘𝐹) = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))

Proof of Theorem trlval2
Dummy variables 𝑥 𝑞 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 hllat 40612 . . 3 (𝐾 ∈ HL → 𝐾 ∈ Lat)
21anim1i 627 . 2 ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → (𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻))
3 eqid 2763 . . . . 5 (Base‘𝐾) = (Base‘𝐾)
4 trlval2.l . . . . 5 ≤ = (le‘𝐾)
5 trlval2.j . . . . 5 ∨ = (join‘𝐾)
6 trlval2.m . . . . 5 ∧ = (meet‘𝐾)
7 trlval2.a . . . . 5 𝐴 = (Atoms‘𝐾)
8 trlval2.h . . . . 5 𝐻 = (LHyp‘𝐾)
9 trlval2.t . . . . 5 𝑇 = ((LTrn‘𝐾)‘𝑊)
10 trlval2.r . . . . 5 𝑅 = ((trL‘𝐾)‘𝑊)
113, 4, 5, 6, 7, 8, 9, 10trlval 41411 . . . 4 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) → (𝑅‘𝐹) = (℩𝑥 ∈ (Base‘𝐾)∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊))))
12113adant3 1150 . . 3 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝑅‘𝐹) = (℩𝑥 ∈ (Base‘𝐾)∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊))))
13 simp1l 1216 . . . . 5 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → 𝐾 ∈ Lat)
14 simp3l 1220 . . . . . . 7 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → 𝑃 ∈ 𝐴)
153, 7atbase 40538 . . . . . . 7 (𝑃 ∈ 𝐴 → 𝑃 ∈ (Base‘𝐾))
1614, 15syl 18 . . . . . 6 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → 𝑃 ∈ (Base‘𝐾))
173, 8, 9ltrncl 41374 . . . . . . 7 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ 𝑃 ∈ (Base‘𝐾)) → (𝐹‘𝑃) ∈ (Base‘𝐾))
1816, 17syld3an3 1437 . . . . . 6 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝐹‘𝑃) ∈ (Base‘𝐾))
193, 5latjcl 18642 . . . . . 6 ((𝐾 ∈ Lat ∧ 𝑃 ∈ (Base‘𝐾) ∧ (𝐹‘𝑃) ∈ (Base‘𝐾)) → (𝑃 ∨ (𝐹‘𝑃)) ∈ (Base‘𝐾))
2013, 16, 18, 19syl3anc 1399 . . . . 5 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝑃 ∨ (𝐹‘𝑃)) ∈ (Base‘𝐾))
21 simp1r 1217 . . . . . 6 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → 𝑊 ∈ 𝐻)
223, 8lhpbase 41247 . . . . . 6 (𝑊 ∈ 𝐻 → 𝑊 ∈ (Base‘𝐾))
2321, 22syl 18 . . . . 5 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → 𝑊 ∈ (Base‘𝐾))
243, 6latmcl 18643 . . . . 5 ((𝐾 ∈ Lat ∧ (𝑃 ∨ (𝐹‘𝑃)) ∈ (Base‘𝐾) ∧ 𝑊 ∈ (Base‘𝐾)) → ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) ∈ (Base‘𝐾))
2513, 20, 23, 24syl3anc 1399 . . . 4 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) ∈ (Base‘𝐾))
26 simpl3l 1247 . . . . . 6 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ 𝑥 ∈ (Base‘𝐾)) → 𝑃 ∈ 𝐴)
27 simpl3r 1248 . . . . . 6 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ 𝑥 ∈ (Base‘𝐾)) → ¬ 𝑃 ≤ 𝑊)
28 breq1 5109 . . . . . . . . . 10 (𝑞 = 𝑃 → (𝑞 ≤ 𝑊 ↔ 𝑃 ≤ 𝑊))
2928notbid 321 . . . . . . . . 9 (𝑞 = 𝑃 → (¬ 𝑞 ≤ 𝑊 ↔ ¬ 𝑃 ≤ 𝑊))
30 id 23 . . . . . . . . . . . 12 (𝑞 = 𝑃 → 𝑞 = 𝑃)
31 fveq2 6908 . . . . . . . . . . . 12 (𝑞 = 𝑃 → (𝐹‘𝑞) = (𝐹‘𝑃))
3230, 31oveq12d 7461 . . . . . . . . . . 11 (𝑞 = 𝑃 → (𝑞 ∨ (𝐹‘𝑞)) = (𝑃 ∨ (𝐹‘𝑃)))
3332oveq1d 7458 . . . . . . . . . 10 (𝑞 = 𝑃 → ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊) = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))
3433eqeq2d 2774 . . . . . . . . 9 (𝑞 = 𝑃 → (𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊) ↔ 𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊)))
3529, 34imbi12d 347 . . . . . . . 8 (𝑞 = 𝑃 → ((¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)) ↔ (¬ 𝑃 ≤ 𝑊 → 𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))))
3635rspcv 3576 . . . . . . 7 (𝑃 ∈ 𝐴 → (∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)) → (¬ 𝑃 ≤ 𝑊 → 𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))))
3736com23 87 . . . . . 6 (𝑃 ∈ 𝐴 → (¬ 𝑃 ≤ 𝑊 → (∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)) → 𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))))
3826, 27, 37sylc 66 . . . . 5 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ 𝑥 ∈ (Base‘𝐾)) → (∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)) → 𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊)))
39 simp11 1222 . . . . . . . . . . 11 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → (𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻))
40 simp12 1223 . . . . . . . . . . 11 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → 𝐹 ∈ 𝑇)
41 simp13l 1307 . . . . . . . . . . 11 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → 𝑃 ∈ 𝐴)
42 simp13r 1308 . . . . . . . . . . 11 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → ¬ 𝑃 ≤ 𝑊)
43 simp3 1156 . . . . . . . . . . 11 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → 𝑞 ∈ 𝐴)
44 simp2 1155 . . . . . . . . . . 11 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → ¬ 𝑞 ≤ 𝑊)
454, 5, 6, 7, 8, 9ltrnu 41370 . . . . . . . . . . 11 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑞 ∈ 𝐴 ∧ ¬ 𝑞 ≤ 𝑊)) → ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊))
4639, 40, 41, 42, 43, 44, 45syl222anc 1414 . . . . . . . . . 10 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊))
47 eqeq2 2775 . . . . . . . . . . 11 (((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊) → (𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) ↔ 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)))
4847biimpd 232 . . . . . . . . . 10 (((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊) → (𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)))
4946, 48syl 18 . . . . . . . . 9 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑞 ∈ 𝐴) → (𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)))
50493exp 1137 . . . . . . . 8 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (¬ 𝑞 ≤ 𝑊 → (𝑞 ∈ 𝐴 → (𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)))))
5150com24 96 . . . . . . 7 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) → (𝑞 ∈ 𝐴 → (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)))))
5251ralrimdv 3164 . . . . . 6 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) → ∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊))))
5352adantr 486 . . . . 5 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ 𝑥 ∈ (Base‘𝐾)) → (𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊) → ∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊))))
5438, 53impbid 215 . . . 4 ((((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ 𝑥 ∈ (Base‘𝐾)) → (∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊)) ↔ 𝑥 = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊)))
5525, 54riota5 7429 . . 3 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (℩𝑥 ∈ (Base‘𝐾)∀𝑞 ∈ 𝐴 (¬ 𝑞 ≤ 𝑊 → 𝑥 = ((𝑞 ∨ (𝐹‘𝑞)) ∧ 𝑊))) = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))
5612, 55eqtrd 2798 . 2 (((𝐾 ∈ Lat ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝑅‘𝐹) = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))
572, 56syl3an1 1181 1 (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝐹 ∈ 𝑇 ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → (𝑅‘𝐹) = ((𝑃 ∨ (𝐹‘𝑃)) ∧ 𝑊))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  ¬ wn 3   → wi 4   ∧ wa 401   ∧ w3a 1103   = wceq 1570   ∈ wcel 2147  ∀wral 3080   class class class wbr 5106  ‘cfv 6558  ℩crio 7399  (class class class)co 7443  Basecbs 17416  lecple 17464  joincjn 18514  meetcmee 18515  Latclat 18634  Atomscatm 40512  HLchlt 40599  LHypclh 41233  LTrncltrn 41350  trLctrl 41407
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735  ax-rep 5235  ax-sep 5252  ax-nul 5263  ax-pow 5331  ax-pr 5395  ax-un 7775
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2102  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2839  df-nfc 2913  df-ne 2960  df-ral 3081  df-rex 3091  df-rmo 3369  df-reu 3370  df-rab 3417  df-v 3456  df-sbc 3743  df-csb 3852  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-pw 4562  df-sn 4589  df-pr 4591  df-op 4839  df-uni 4871  df-iun 4956  df-br 5107  df-opab 5171  df-mpt 5190  df-id 5550  df-xp 5661  df-rel 5662  df-cnv 5663  df-co 5664  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668  df-iota 6512  df-fun 6560  df-fn 6561  df-f 6562  df-f1 6563  df-fo 6564  df-f1o 6565  df-fv 6566  df-riota 7400  df-ov 7446  df-oprab 7447  df-mpo 7448  df-map 8877  df-lub 18547  df-glb 18548  df-join 18549  df-meet 18550  df-lat 18635  df-ats 40516  df-atl 40547  df-cvlat 40571  df-hlat 40600  df-lhyp 41237  df-laut 41238  df-ldil 41353  df-ltrn 41354  df-trl 41408
This theorem is used by:  trlcl  41413  trlcnv  41414  trljat1  41415  trljat2  41416  trlat  41418  trl0  41419  trlle  41433  trlval3  41436  trlval5  41438  cdlemd6  41452  cdlemf  41812  cdlemg4a  41857  cdlemg4b1  41858  cdlemg4b2  41859  cdlemg4  41866  cdlemg11b  41891  cdlemg13a  41900  cdlemg13  41901  cdlemg17a  41910  cdlemg17dN  41912  cdlemg17e  41914  cdlemg17f  41915  trlcoabs2N  41971  trlcolem  41975  cdlemg42  41978  cdlemg43  41979  cdlemi1  42067  cdlemk4  42083  cdlemk39  42165  dia2dimlem1  42313  dia2dimlem2  42314  dia2dimlem3  42315  cdlemm10N  42367  cdlemn2  42444  cdlemn10  42455  dihjatcclem3  42669
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