Step | Hyp | Ref
| Expression |
1 | | acsmapd.4 |
. . . 4
⊢ (𝜑 → 𝑇 ⊆ (𝑁‘𝑆)) |
2 | | fvex 6784 |
. . . . 5
⊢ (𝑁‘𝑆) ∈ V |
3 | 2 | ssex 5249 |
. . . 4
⊢ (𝑇 ⊆ (𝑁‘𝑆) → 𝑇 ∈ V) |
4 | 1, 3 | syl 17 |
. . 3
⊢ (𝜑 → 𝑇 ∈ V) |
5 | 1 | sseld 3925 |
. . . . 5
⊢ (𝜑 → (𝑥 ∈ 𝑇 → 𝑥 ∈ (𝑁‘𝑆))) |
6 | | acsmapd.1 |
. . . . . 6
⊢ (𝜑 → 𝐴 ∈ (ACS‘𝑋)) |
7 | | acsmapd.2 |
. . . . . 6
⊢ 𝑁 = (mrCls‘𝐴) |
8 | | acsmapd.3 |
. . . . . 6
⊢ (𝜑 → 𝑆 ⊆ 𝑋) |
9 | 6, 7, 8 | acsficl2d 18268 |
. . . . 5
⊢ (𝜑 → (𝑥 ∈ (𝑁‘𝑆) ↔ ∃𝑦 ∈ (𝒫 𝑆 ∩ Fin)𝑥 ∈ (𝑁‘𝑦))) |
10 | 5, 9 | sylibd 238 |
. . . 4
⊢ (𝜑 → (𝑥 ∈ 𝑇 → ∃𝑦 ∈ (𝒫 𝑆 ∩ Fin)𝑥 ∈ (𝑁‘𝑦))) |
11 | 10 | ralrimiv 3109 |
. . 3
⊢ (𝜑 → ∀𝑥 ∈ 𝑇 ∃𝑦 ∈ (𝒫 𝑆 ∩ Fin)𝑥 ∈ (𝑁‘𝑦)) |
12 | | fveq2 6771 |
. . . . 5
⊢ (𝑦 = (𝑓‘𝑥) → (𝑁‘𝑦) = (𝑁‘(𝑓‘𝑥))) |
13 | 12 | eleq2d 2826 |
. . . 4
⊢ (𝑦 = (𝑓‘𝑥) → (𝑥 ∈ (𝑁‘𝑦) ↔ 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) |
14 | 13 | ac6sg 10245 |
. . 3
⊢ (𝑇 ∈ V → (∀𝑥 ∈ 𝑇 ∃𝑦 ∈ (𝒫 𝑆 ∩ Fin)𝑥 ∈ (𝑁‘𝑦) → ∃𝑓(𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥))))) |
15 | 4, 11, 14 | sylc 65 |
. 2
⊢ (𝜑 → ∃𝑓(𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) |
16 | | simprl 768 |
. . . . 5
⊢ ((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) → 𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin)) |
17 | | nfv 1921 |
. . . . . . . 8
⊢
Ⅎ𝑥𝜑 |
18 | | nfv 1921 |
. . . . . . . . 9
⊢
Ⅎ𝑥 𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) |
19 | | nfra1 3145 |
. . . . . . . . 9
⊢
Ⅎ𝑥∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)) |
20 | 18, 19 | nfan 1906 |
. . . . . . . 8
⊢
Ⅎ𝑥(𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥))) |
21 | 17, 20 | nfan 1906 |
. . . . . . 7
⊢
Ⅎ𝑥(𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) |
22 | 6 | ad2antrr 723 |
. . . . . . . . . . 11
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝐴 ∈ (ACS‘𝑋)) |
23 | 22 | acsmred 17363 |
. . . . . . . . . 10
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝐴 ∈ (Moore‘𝑋)) |
24 | | simplrl 774 |
. . . . . . . . . . . . . 14
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin)) |
25 | 24 | ffnd 6599 |
. . . . . . . . . . . . 13
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝑓 Fn 𝑇) |
26 | | fnfvelrn 6955 |
. . . . . . . . . . . . 13
⊢ ((𝑓 Fn 𝑇 ∧ 𝑥 ∈ 𝑇) → (𝑓‘𝑥) ∈ ran 𝑓) |
27 | 25, 26 | sylancom 588 |
. . . . . . . . . . . 12
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → (𝑓‘𝑥) ∈ ran 𝑓) |
28 | 27 | snssd 4748 |
. . . . . . . . . . 11
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → {(𝑓‘𝑥)} ⊆ ran 𝑓) |
29 | 28 | unissd 4855 |
. . . . . . . . . 10
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → ∪
{(𝑓‘𝑥)} ⊆ ∪ ran 𝑓) |
30 | | frn 6605 |
. . . . . . . . . . . . . 14
⊢ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) → ran 𝑓 ⊆ (𝒫 𝑆 ∩ Fin)) |
31 | 30 | unissd 4855 |
. . . . . . . . . . . . 13
⊢ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) → ∪ ran 𝑓 ⊆ ∪
(𝒫 𝑆 ∩
Fin)) |
32 | | unifpw 9100 |
. . . . . . . . . . . . 13
⊢ ∪ (𝒫 𝑆 ∩ Fin) = 𝑆 |
33 | 31, 32 | sseqtrdi 3976 |
. . . . . . . . . . . 12
⊢ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) → ∪ ran 𝑓 ⊆ 𝑆) |
34 | 24, 33 | syl 17 |
. . . . . . . . . . 11
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → ∪ ran
𝑓 ⊆ 𝑆) |
35 | 8 | ad2antrr 723 |
. . . . . . . . . . 11
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝑆 ⊆ 𝑋) |
36 | 34, 35 | sstrd 3936 |
. . . . . . . . . 10
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → ∪ ran
𝑓 ⊆ 𝑋) |
37 | 23, 7, 29, 36 | mrcssd 17331 |
. . . . . . . . 9
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → (𝑁‘∪ {(𝑓‘𝑥)}) ⊆ (𝑁‘∪ ran
𝑓)) |
38 | | simprr 770 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) → ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥))) |
39 | 38 | r19.21bi 3135 |
. . . . . . . . . 10
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝑥 ∈ (𝑁‘(𝑓‘𝑥))) |
40 | | fvex 6784 |
. . . . . . . . . . . 12
⊢ (𝑓‘𝑥) ∈ V |
41 | 40 | unisn 4867 |
. . . . . . . . . . 11
⊢ ∪ {(𝑓‘𝑥)} = (𝑓‘𝑥) |
42 | 41 | fveq2i 6774 |
. . . . . . . . . 10
⊢ (𝑁‘∪ {(𝑓‘𝑥)}) = (𝑁‘(𝑓‘𝑥)) |
43 | 39, 42 | eleqtrrdi 2852 |
. . . . . . . . 9
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝑥 ∈ (𝑁‘∪ {(𝑓‘𝑥)})) |
44 | 37, 43 | sseldd 3927 |
. . . . . . . 8
⊢ (((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) ∧ 𝑥 ∈ 𝑇) → 𝑥 ∈ (𝑁‘∪ ran
𝑓)) |
45 | 44 | ex 413 |
. . . . . . 7
⊢ ((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) → (𝑥 ∈ 𝑇 → 𝑥 ∈ (𝑁‘∪ ran
𝑓))) |
46 | 21, 45 | alrimi 2210 |
. . . . . 6
⊢ ((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) → ∀𝑥(𝑥 ∈ 𝑇 → 𝑥 ∈ (𝑁‘∪ ran
𝑓))) |
47 | | dfss2 3912 |
. . . . . 6
⊢ (𝑇 ⊆ (𝑁‘∪ ran
𝑓) ↔ ∀𝑥(𝑥 ∈ 𝑇 → 𝑥 ∈ (𝑁‘∪ ran
𝑓))) |
48 | 46, 47 | sylibr 233 |
. . . . 5
⊢ ((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) → 𝑇 ⊆ (𝑁‘∪ ran
𝑓)) |
49 | 16, 48 | jca 512 |
. . . 4
⊢ ((𝜑 ∧ (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥)))) → (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑇 ⊆ (𝑁‘∪ ran
𝑓))) |
50 | 49 | ex 413 |
. . 3
⊢ (𝜑 → ((𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥))) → (𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑇 ⊆ (𝑁‘∪ ran
𝑓)))) |
51 | 50 | eximdv 1924 |
. 2
⊢ (𝜑 → (∃𝑓(𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ ∀𝑥 ∈ 𝑇 𝑥 ∈ (𝑁‘(𝑓‘𝑥))) → ∃𝑓(𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑇 ⊆ (𝑁‘∪ ran
𝑓)))) |
52 | 15, 51 | mpd 15 |
1
⊢ (𝜑 → ∃𝑓(𝑓:𝑇⟶(𝒫 𝑆 ∩ Fin) ∧ 𝑇 ⊆ (𝑁‘∪ ran
𝑓))) |