Proof of Theorem cdlemn10
Step | Hyp | Ref
| Expression |
1 | | cdlemn10.b |
. 2
⊢ 𝐵 = (Base‘𝐾) |
2 | | cdlemn10.l |
. 2
⊢ ≤ =
(le‘𝐾) |
3 | | simp1l 1078 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝐾 ∈ HL) |
4 | | hllat 33668 |
. . 3
⊢ (𝐾 ∈ HL → 𝐾 ∈ Lat) |
5 | 3, 4 | syl 17 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝐾 ∈ Lat) |
6 | | simp22l 1173 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑆 ∈ 𝐴) |
7 | | cdlemn10.a |
. . . 4
⊢ 𝐴 = (Atoms‘𝐾) |
8 | 1, 7 | atbase 33594 |
. . 3
⊢ (𝑆 ∈ 𝐴 → 𝑆 ∈ 𝐵) |
9 | 6, 8 | syl 17 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑆 ∈ 𝐵) |
10 | | simp21l 1171 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑄 ∈ 𝐴) |
11 | | cdlemn10.j |
. . . 4
⊢ ∨ =
(join‘𝐾) |
12 | 1, 11, 7 | hlatjcl 33671 |
. . 3
⊢ ((𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴) → (𝑄 ∨ 𝑆) ∈ 𝐵) |
13 | 3, 10, 6, 12 | syl3anc 1318 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ 𝑆) ∈ 𝐵) |
14 | 1, 7 | atbase 33594 |
. . . 4
⊢ (𝑄 ∈ 𝐴 → 𝑄 ∈ 𝐵) |
15 | 10, 14 | syl 17 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑄 ∈ 𝐵) |
16 | | simp23l 1175 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑋 ∈ 𝐵) |
17 | 1, 11 | latjcl 16874 |
. . 3
⊢ ((𝐾 ∈ Lat ∧ 𝑄 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (𝑄 ∨ 𝑋) ∈ 𝐵) |
18 | 5, 15, 16, 17 | syl3anc 1318 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ 𝑋) ∈ 𝐵) |
19 | 2, 11, 7 | hlatlej2 33680 |
. . 3
⊢ ((𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴) → 𝑆 ≤ (𝑄 ∨ 𝑆)) |
20 | 3, 10, 6, 19 | syl3anc 1318 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑆 ≤ (𝑄 ∨ 𝑆)) |
21 | | simp1r 1079 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑊 ∈ 𝐻) |
22 | | cdlemn10.h |
. . . . . . 7
⊢ 𝐻 = (LHyp‘𝐾) |
23 | 1, 22 | lhpbase 34302 |
. . . . . 6
⊢ (𝑊 ∈ 𝐻 → 𝑊 ∈ 𝐵) |
24 | 21, 23 | syl 17 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑊 ∈ 𝐵) |
25 | 2, 11, 7 | hlatlej1 33679 |
. . . . . 6
⊢ ((𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴) → 𝑄 ≤ (𝑄 ∨ 𝑆)) |
26 | 3, 10, 6, 25 | syl3anc 1318 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑄 ≤ (𝑄 ∨ 𝑆)) |
27 | | eqid 2610 |
. . . . . 6
⊢
(meet‘𝐾) =
(meet‘𝐾) |
28 | 1, 2, 11, 27, 7 | atmod3i1 34168 |
. . . . 5
⊢ ((𝐾 ∈ HL ∧ (𝑄 ∈ 𝐴 ∧ (𝑄 ∨ 𝑆) ∈ 𝐵 ∧ 𝑊 ∈ 𝐵) ∧ 𝑄 ≤ (𝑄 ∨ 𝑆)) → (𝑄 ∨ ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊)) = ((𝑄 ∨ 𝑆)(meet‘𝐾)(𝑄 ∨ 𝑊))) |
29 | 3, 10, 13, 24, 26, 28 | syl131anc 1331 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊)) = ((𝑄 ∨ 𝑆)(meet‘𝐾)(𝑄 ∨ 𝑊))) |
30 | | simp1 1054 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻)) |
31 | | simp21 1087 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) |
32 | | eqid 2610 |
. . . . . . 7
⊢
(1.‘𝐾) =
(1.‘𝐾) |
33 | 2, 11, 32, 7, 22 | lhpjat2 34325 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) → (𝑄 ∨ 𝑊) = (1.‘𝐾)) |
34 | 30, 31, 33 | syl2anc 691 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ 𝑊) = (1.‘𝐾)) |
35 | 34 | oveq2d 6565 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → ((𝑄 ∨ 𝑆)(meet‘𝐾)(𝑄 ∨ 𝑊)) = ((𝑄 ∨ 𝑆)(meet‘𝐾)(1.‘𝐾))) |
36 | | hlol 33666 |
. . . . . 6
⊢ (𝐾 ∈ HL → 𝐾 ∈ OL) |
37 | 3, 36 | syl 17 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝐾 ∈ OL) |
38 | 1, 27, 32 | olm11 33532 |
. . . . 5
⊢ ((𝐾 ∈ OL ∧ (𝑄 ∨ 𝑆) ∈ 𝐵) → ((𝑄 ∨ 𝑆)(meet‘𝐾)(1.‘𝐾)) = (𝑄 ∨ 𝑆)) |
39 | 37, 13, 38 | syl2anc 691 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → ((𝑄 ∨ 𝑆)(meet‘𝐾)(1.‘𝐾)) = (𝑄 ∨ 𝑆)) |
40 | 29, 35, 39 | 3eqtrrd 2649 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ 𝑆) = (𝑄 ∨ ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊))) |
41 | | simp31 1090 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑔 ∈ 𝑇) |
42 | | cdlemn10.t |
. . . . . . . 8
⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊) |
43 | | cdlemn10.r |
. . . . . . . 8
⊢ 𝑅 = ((trL‘𝐾)‘𝑊) |
44 | 2, 11, 27, 7, 22, 42, 43 | trlval2 34468 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑔 ∈ 𝑇 ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) → (𝑅‘𝑔) = ((𝑄 ∨ (𝑔‘𝑄))(meet‘𝐾)𝑊)) |
45 | 30, 41, 31, 44 | syl3anc 1318 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑅‘𝑔) = ((𝑄 ∨ (𝑔‘𝑄))(meet‘𝐾)𝑊)) |
46 | | simp32 1091 |
. . . . . . . 8
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑔‘𝑄) = 𝑆) |
47 | 46 | oveq2d 6565 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ (𝑔‘𝑄)) = (𝑄 ∨ 𝑆)) |
48 | 47 | oveq1d 6564 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → ((𝑄 ∨ (𝑔‘𝑄))(meet‘𝐾)𝑊) = ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊)) |
49 | 45, 48 | eqtrd 2644 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑅‘𝑔) = ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊)) |
50 | | simp33 1092 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑅‘𝑔) ≤ 𝑋) |
51 | 49, 50 | eqbrtrrd 4607 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊) ≤ 𝑋) |
52 | 1, 27 | latmcl 16875 |
. . . . . 6
⊢ ((𝐾 ∈ Lat ∧ (𝑄 ∨ 𝑆) ∈ 𝐵 ∧ 𝑊 ∈ 𝐵) → ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊) ∈ 𝐵) |
53 | 5, 13, 24, 52 | syl3anc 1318 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊) ∈ 𝐵) |
54 | 1, 2, 11 | latjlej2 16889 |
. . . . 5
⊢ ((𝐾 ∈ Lat ∧ (((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊) ∈ 𝐵 ∧ 𝑋 ∈ 𝐵 ∧ 𝑄 ∈ 𝐵)) → (((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊) ≤ 𝑋 → (𝑄 ∨ ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊)) ≤ (𝑄 ∨ 𝑋))) |
55 | 5, 53, 16, 15, 54 | syl13anc 1320 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊) ≤ 𝑋 → (𝑄 ∨ ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊)) ≤ (𝑄 ∨ 𝑋))) |
56 | 51, 55 | mpd 15 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ ((𝑄 ∨ 𝑆)(meet‘𝐾)𝑊)) ≤ (𝑄 ∨ 𝑋)) |
57 | 40, 56 | eqbrtrd 4605 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → (𝑄 ∨ 𝑆) ≤ (𝑄 ∨ 𝑋)) |
58 | 1, 2, 5, 9, 13, 18, 20, 57 | lattrd 16881 |
1
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊) ∧ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) ∧ (𝑔 ∈ 𝑇 ∧ (𝑔‘𝑄) = 𝑆 ∧ (𝑅‘𝑔) ≤ 𝑋)) → 𝑆 ≤ (𝑄 ∨ 𝑋)) |