Step | Hyp | Ref
| Expression |
1 | | dvh3dim.h |
. . . . 5
⊢ 𝐻 = (LHyp‘𝐾) |
2 | | dvh3dim.u |
. . . . 5
⊢ 𝑈 = ((DVecH‘𝐾)‘𝑊) |
3 | | dvh3dim.v |
. . . . 5
⊢ 𝑉 = (Base‘𝑈) |
4 | | dvh3dim.n |
. . . . 5
⊢ 𝑁 = (LSpan‘𝑈) |
5 | | dvh3dim.k |
. . . . 5
⊢ (𝜑 → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻)) |
6 | | dvh3dim.x |
. . . . 5
⊢ (𝜑 → 𝑋 ∈ 𝑉) |
7 | | dvh3dim2.z |
. . . . 5
⊢ (𝜑 → 𝑍 ∈ 𝑉) |
8 | 1, 2, 3, 4, 5, 6, 7 | dvh3dim 39460 |
. . . 4
⊢ (𝜑 → ∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍})) |
9 | 8 | adantr 481 |
. . 3
⊢ ((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) → ∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍})) |
10 | | eqid 2738 |
. . . . . . 7
⊢
(LSubSp‘𝑈) =
(LSubSp‘𝑈) |
11 | 1, 2, 5 | dvhlmod 39124 |
. . . . . . . 8
⊢ (𝜑 → 𝑈 ∈ LMod) |
12 | 11 | ad2antrr 723 |
. . . . . . 7
⊢ (((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑧 ∈ 𝑉) → 𝑈 ∈ LMod) |
13 | 3, 10, 4, 11, 6, 7 | lspprcl 20240 |
. . . . . . . 8
⊢ (𝜑 → (𝑁‘{𝑋, 𝑍}) ∈ (LSubSp‘𝑈)) |
14 | 13 | ad2antrr 723 |
. . . . . . 7
⊢ (((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑧 ∈ 𝑉) → (𝑁‘{𝑋, 𝑍}) ∈ (LSubSp‘𝑈)) |
15 | 3, 4, 11, 6, 7 | lspprid1 20259 |
. . . . . . . 8
⊢ (𝜑 → 𝑋 ∈ (𝑁‘{𝑋, 𝑍})) |
16 | 15 | ad2antrr 723 |
. . . . . . 7
⊢ (((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑧 ∈ 𝑉) → 𝑋 ∈ (𝑁‘{𝑋, 𝑍})) |
17 | | simplr 766 |
. . . . . . 7
⊢ (((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑧 ∈ 𝑉) → 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) |
18 | 10, 4, 12, 14, 16, 17 | lspprss 20254 |
. . . . . 6
⊢ (((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑧 ∈ 𝑉) → (𝑁‘{𝑋, 𝑌}) ⊆ (𝑁‘{𝑋, 𝑍})) |
19 | 18 | ssneld 3923 |
. . . . 5
⊢ (((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑧 ∈ 𝑉) → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}) → ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}))) |
20 | 19 | ancrd 552 |
. . . 4
⊢ (((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑧 ∈ 𝑉) → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}) → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍})))) |
21 | 20 | reximdva 3203 |
. . 3
⊢ ((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) → (∃𝑧 ∈ 𝑉 ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍})))) |
22 | 9, 21 | mpd 15 |
. 2
⊢ ((𝜑 ∧ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |
23 | | dvh3dim.y |
. . . . 5
⊢ (𝜑 → 𝑌 ∈ 𝑉) |
24 | 1, 2, 3, 4, 5, 6, 23 | dvh3dim 39460 |
. . . 4
⊢ (𝜑 → ∃𝑤 ∈ 𝑉 ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) |
25 | 24 | adantr 481 |
. . 3
⊢ ((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) → ∃𝑤 ∈ 𝑉 ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) |
26 | | simpl1l 1223 |
. . . . . . . 8
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → 𝜑) |
27 | 26, 11 | syl 17 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → 𝑈 ∈ LMod) |
28 | | simpl2 1191 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → 𝑤 ∈ 𝑉) |
29 | 26, 23 | syl 17 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → 𝑌 ∈ 𝑉) |
30 | | eqid 2738 |
. . . . . . . 8
⊢
(+g‘𝑈) = (+g‘𝑈) |
31 | 3, 30 | lmodvacl 20137 |
. . . . . . 7
⊢ ((𝑈 ∈ LMod ∧ 𝑤 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → (𝑤(+g‘𝑈)𝑌) ∈ 𝑉) |
32 | 27, 28, 29, 31 | syl3anc 1370 |
. . . . . 6
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → (𝑤(+g‘𝑈)𝑌) ∈ 𝑉) |
33 | 3, 10, 4, 11, 6, 23 | lspprcl 20240 |
. . . . . . . 8
⊢ (𝜑 → (𝑁‘{𝑋, 𝑌}) ∈ (LSubSp‘𝑈)) |
34 | 26, 33 | syl 17 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → (𝑁‘{𝑋, 𝑌}) ∈ (LSubSp‘𝑈)) |
35 | 3, 4, 11, 6, 23 | lspprid2 20260 |
. . . . . . . 8
⊢ (𝜑 → 𝑌 ∈ (𝑁‘{𝑋, 𝑌})) |
36 | 26, 35 | syl 17 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → 𝑌 ∈ (𝑁‘{𝑋, 𝑌})) |
37 | | simpl3 1192 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) |
38 | 3, 30, 10, 27, 34, 36, 28, 37 | lssvancl2 20207 |
. . . . . 6
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑌})) |
39 | 26, 13 | syl 17 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → (𝑁‘{𝑋, 𝑍}) ∈ (LSubSp‘𝑈)) |
40 | | simpr 485 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) |
41 | | simpl1r 1224 |
. . . . . . 7
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) |
42 | 3, 30, 10, 27, 39, 40, 29, 41 | lssvancl1 20206 |
. . . . . 6
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑍})) |
43 | | eleq1 2826 |
. . . . . . . . 9
⊢ (𝑧 = (𝑤(+g‘𝑈)𝑌) → (𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ↔ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑌}))) |
44 | 43 | notbid 318 |
. . . . . . . 8
⊢ (𝑧 = (𝑤(+g‘𝑈)𝑌) → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ↔ ¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑌}))) |
45 | | eleq1 2826 |
. . . . . . . . 9
⊢ (𝑧 = (𝑤(+g‘𝑈)𝑌) → (𝑧 ∈ (𝑁‘{𝑋, 𝑍}) ↔ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑍}))) |
46 | 45 | notbid 318 |
. . . . . . . 8
⊢ (𝑧 = (𝑤(+g‘𝑈)𝑌) → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}) ↔ ¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑍}))) |
47 | 44, 46 | anbi12d 631 |
. . . . . . 7
⊢ (𝑧 = (𝑤(+g‘𝑈)𝑌) → ((¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍})) ↔ (¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑍})))) |
48 | 47 | rspcev 3561 |
. . . . . 6
⊢ (((𝑤(+g‘𝑈)𝑌) ∈ 𝑉 ∧ (¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ (𝑤(+g‘𝑈)𝑌) ∈ (𝑁‘{𝑋, 𝑍}))) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |
49 | 32, 38, 42, 48 | syl12anc 834 |
. . . . 5
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |
50 | | simpl2 1191 |
. . . . . 6
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → 𝑤 ∈ 𝑉) |
51 | | simpl3 1192 |
. . . . . 6
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) |
52 | | simpr 485 |
. . . . . 6
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) |
53 | | eleq1 2826 |
. . . . . . . . 9
⊢ (𝑧 = 𝑤 → (𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ↔ 𝑤 ∈ (𝑁‘{𝑋, 𝑌}))) |
54 | 53 | notbid 318 |
. . . . . . . 8
⊢ (𝑧 = 𝑤 → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ↔ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌}))) |
55 | | eleq1 2826 |
. . . . . . . . 9
⊢ (𝑧 = 𝑤 → (𝑧 ∈ (𝑁‘{𝑋, 𝑍}) ↔ 𝑤 ∈ (𝑁‘{𝑋, 𝑍}))) |
56 | 55 | notbid 318 |
. . . . . . . 8
⊢ (𝑧 = 𝑤 → (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}) ↔ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍}))) |
57 | 54, 56 | anbi12d 631 |
. . . . . . 7
⊢ (𝑧 = 𝑤 → ((¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍})) ↔ (¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})))) |
58 | 57 | rspcev 3561 |
. . . . . 6
⊢ ((𝑤 ∈ 𝑉 ∧ (¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍}))) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |
59 | 50, 51, 52, 58 | syl12anc 834 |
. . . . 5
⊢ ((((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑍})) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |
60 | 49, 59 | pm2.61dan 810 |
. . . 4
⊢ (((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) ∧ 𝑤 ∈ 𝑉 ∧ ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌})) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |
61 | 60 | rexlimdv3a 3215 |
. . 3
⊢ ((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) → (∃𝑤 ∈ 𝑉 ¬ 𝑤 ∈ (𝑁‘{𝑋, 𝑌}) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍})))) |
62 | 25, 61 | mpd 15 |
. 2
⊢ ((𝜑 ∧ ¬ 𝑌 ∈ (𝑁‘{𝑋, 𝑍})) → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |
63 | 22, 62 | pm2.61dan 810 |
1
⊢ (𝜑 → ∃𝑧 ∈ 𝑉 (¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑌}) ∧ ¬ 𝑧 ∈ (𝑁‘{𝑋, 𝑍}))) |