Proof of Theorem cdlemg2fv2
Step | Hyp | Ref
| Expression |
1 | | simp1 1170 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻)) |
2 | | simp23 1269 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) |
3 | | simp1l 1258 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝐾 ∈ HL) |
4 | 3 | hllatd 35438 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝐾 ∈ Lat) |
5 | | simp23l 1397 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑅 ∈ 𝐴) |
6 | | eqid 2825 |
. . . . . . 7
⊢
(Base‘𝐾) =
(Base‘𝐾) |
7 | | cdlemg2j.a |
. . . . . . 7
⊢ 𝐴 = (Atoms‘𝐾) |
8 | 6, 7 | atbase 35363 |
. . . . . 6
⊢ (𝑅 ∈ 𝐴 → 𝑅 ∈ (Base‘𝐾)) |
9 | 5, 8 | syl 17 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑅 ∈ (Base‘𝐾)) |
10 | | simp1r 1259 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑊 ∈ 𝐻) |
11 | | simp21l 1393 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑃 ∈ 𝐴) |
12 | | simp22l 1395 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑄 ∈ 𝐴) |
13 | | cdlemg2j.l |
. . . . . . 7
⊢ ≤ =
(le‘𝐾) |
14 | | cdlemg2j.j |
. . . . . . 7
⊢ ∨ =
(join‘𝐾) |
15 | | cdlemg2j.m |
. . . . . . 7
⊢ ∧ =
(meet‘𝐾) |
16 | | cdlemg2inv.h |
. . . . . . 7
⊢ 𝐻 = (LHyp‘𝐾) |
17 | | cdlemg2j.u |
. . . . . . 7
⊢ 𝑈 = ((𝑃 ∨ 𝑄) ∧ 𝑊) |
18 | 13, 14, 15, 7, 16, 17, 6 | cdleme0aa 36284 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) → 𝑈 ∈ (Base‘𝐾)) |
19 | 3, 10, 11, 12, 18 | syl211anc 1499 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑈 ∈ (Base‘𝐾)) |
20 | 6, 14 | latjcl 17411 |
. . . . 5
⊢ ((𝐾 ∈ Lat ∧ 𝑅 ∈ (Base‘𝐾) ∧ 𝑈 ∈ (Base‘𝐾)) → (𝑅 ∨ 𝑈) ∈ (Base‘𝐾)) |
21 | 4, 9, 19, 20 | syl3anc 1494 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝑅 ∨ 𝑈) ∈ (Base‘𝐾)) |
22 | | simp23r 1398 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ¬ 𝑅 ≤ 𝑊) |
23 | 6, 13, 14 | latlej1 17420 |
. . . . . . 7
⊢ ((𝐾 ∈ Lat ∧ 𝑅 ∈ (Base‘𝐾) ∧ 𝑈 ∈ (Base‘𝐾)) → 𝑅 ≤ (𝑅 ∨ 𝑈)) |
24 | 4, 9, 19, 23 | syl3anc 1494 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑅 ≤ (𝑅 ∨ 𝑈)) |
25 | 6, 16 | lhpbase 36072 |
. . . . . . . 8
⊢ (𝑊 ∈ 𝐻 → 𝑊 ∈ (Base‘𝐾)) |
26 | 10, 25 | syl 17 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑊 ∈ (Base‘𝐾)) |
27 | 6, 13 | lattr 17416 |
. . . . . . 7
⊢ ((𝐾 ∈ Lat ∧ (𝑅 ∈ (Base‘𝐾) ∧ (𝑅 ∨ 𝑈) ∈ (Base‘𝐾) ∧ 𝑊 ∈ (Base‘𝐾))) → ((𝑅 ≤ (𝑅 ∨ 𝑈) ∧ (𝑅 ∨ 𝑈) ≤ 𝑊) → 𝑅 ≤ 𝑊)) |
28 | 4, 9, 21, 26, 27 | syl13anc 1495 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝑅 ≤ (𝑅 ∨ 𝑈) ∧ (𝑅 ∨ 𝑈) ≤ 𝑊) → 𝑅 ≤ 𝑊)) |
29 | 24, 28 | mpand 686 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝑅 ∨ 𝑈) ≤ 𝑊 → 𝑅 ≤ 𝑊)) |
30 | 22, 29 | mtod 190 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ¬ (𝑅 ∨ 𝑈) ≤ 𝑊) |
31 | 21, 30 | jca 507 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝑅 ∨ 𝑈) ∈ (Base‘𝐾) ∧ ¬ (𝑅 ∨ 𝑈) ≤ 𝑊)) |
32 | | simp3 1172 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝐹 ∈ 𝑇) |
33 | | eqid 2825 |
. . . . . . . 8
⊢
(0.‘𝐾) =
(0.‘𝐾) |
34 | 13, 15, 33, 7, 16 | lhpmat 36104 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) → (𝑅 ∧ 𝑊) = (0.‘𝐾)) |
35 | 1, 2, 34 | syl2anc 579 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝑅 ∧ 𝑊) = (0.‘𝐾)) |
36 | 35 | oveq1d 6925 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝑅 ∧ 𝑊) ∨ 𝑈) = ((0.‘𝐾) ∨ 𝑈)) |
37 | 6, 14, 7 | hlatjcl 35441 |
. . . . . . . . 9
⊢ ((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) → (𝑃 ∨ 𝑄) ∈ (Base‘𝐾)) |
38 | 3, 11, 12, 37 | syl3anc 1494 |
. . . . . . . 8
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝑃 ∨ 𝑄) ∈ (Base‘𝐾)) |
39 | 6, 13, 15 | latmle2 17437 |
. . . . . . . 8
⊢ ((𝐾 ∈ Lat ∧ (𝑃 ∨ 𝑄) ∈ (Base‘𝐾) ∧ 𝑊 ∈ (Base‘𝐾)) → ((𝑃 ∨ 𝑄) ∧ 𝑊) ≤ 𝑊) |
40 | 4, 38, 26, 39 | syl3anc 1494 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝑃 ∨ 𝑄) ∧ 𝑊) ≤ 𝑊) |
41 | 17, 40 | syl5eqbr 4910 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝑈 ≤ 𝑊) |
42 | 6, 13, 14, 15, 7 | atmod4i2 35941 |
. . . . . 6
⊢ ((𝐾 ∈ HL ∧ (𝑅 ∈ 𝐴 ∧ 𝑈 ∈ (Base‘𝐾) ∧ 𝑊 ∈ (Base‘𝐾)) ∧ 𝑈 ≤ 𝑊) → ((𝑅 ∧ 𝑊) ∨ 𝑈) = ((𝑅 ∨ 𝑈) ∧ 𝑊)) |
43 | 3, 5, 19, 26, 41, 42 | syl131anc 1506 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝑅 ∧ 𝑊) ∨ 𝑈) = ((𝑅 ∨ 𝑈) ∧ 𝑊)) |
44 | | hlol 35435 |
. . . . . . 7
⊢ (𝐾 ∈ HL → 𝐾 ∈ OL) |
45 | 3, 44 | syl 17 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → 𝐾 ∈ OL) |
46 | 6, 14, 33 | olj02 35300 |
. . . . . 6
⊢ ((𝐾 ∈ OL ∧ 𝑈 ∈ (Base‘𝐾)) → ((0.‘𝐾) ∨ 𝑈) = 𝑈) |
47 | 45, 19, 46 | syl2anc 579 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((0.‘𝐾) ∨ 𝑈) = 𝑈) |
48 | 36, 43, 47 | 3eqtr3d 2869 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝑅 ∨ 𝑈) ∧ 𝑊) = 𝑈) |
49 | 48 | oveq2d 6926 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝑅 ∨ ((𝑅 ∨ 𝑈) ∧ 𝑊)) = (𝑅 ∨ 𝑈)) |
50 | | cdlemg2inv.t |
. . . 4
⊢ 𝑇 = ((LTrn‘𝐾)‘𝑊) |
51 | 16, 50, 13, 14, 7, 15, 6 | cdlemg2fv 36673 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ ((𝑅 ∨ 𝑈) ∈ (Base‘𝐾) ∧ ¬ (𝑅 ∨ 𝑈) ≤ 𝑊)) ∧ (𝐹 ∈ 𝑇 ∧ (𝑅 ∨ ((𝑅 ∨ 𝑈) ∧ 𝑊)) = (𝑅 ∨ 𝑈))) → (𝐹‘(𝑅 ∨ 𝑈)) = ((𝐹‘𝑅) ∨ ((𝑅 ∨ 𝑈) ∧ 𝑊))) |
52 | 1, 2, 31, 32, 49, 51 | syl122anc 1502 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝐹‘(𝑅 ∨ 𝑈)) = ((𝐹‘𝑅) ∨ ((𝑅 ∨ 𝑈) ∧ 𝑊))) |
53 | 48 | oveq2d 6926 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → ((𝐹‘𝑅) ∨ ((𝑅 ∨ 𝑈) ∧ 𝑊)) = ((𝐹‘𝑅) ∨ 𝑈)) |
54 | 52, 53 | eqtrd 2861 |
1
⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊)) ∧ 𝐹 ∈ 𝑇) → (𝐹‘(𝑅 ∨ 𝑈)) = ((𝐹‘𝑅) ∨ 𝑈)) |