Step | Hyp | Ref
| Expression |
1 | | eqid 2738 |
. . 3
⊢
(Cntz‘𝐺) =
(Cntz‘𝐺) |
2 | | dprd0.0 |
. . 3
⊢ 0 =
(0g‘𝐺) |
3 | | eqid 2738 |
. . 3
⊢
(mrCls‘(SubGrp‘𝐺)) = (mrCls‘(SubGrp‘𝐺)) |
4 | | simpl 482 |
. . 3
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → 𝐺 ∈ Grp) |
5 | | simpr 484 |
. . 3
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → 𝐼 ∈ 𝑉) |
6 | 2 | 0subg 18695 |
. . . . 5
⊢ (𝐺 ∈ Grp → { 0 } ∈
(SubGrp‘𝐺)) |
7 | 6 | ad2antrr 722 |
. . . 4
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑥 ∈ 𝐼) → { 0 } ∈
(SubGrp‘𝐺)) |
8 | 7 | fmpttd 6971 |
. . 3
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → (𝑥 ∈ 𝐼 ↦ { 0 }):𝐼⟶(SubGrp‘𝐺)) |
9 | | eqid 2738 |
. . . . . . . . . . 11
⊢
(Base‘𝐺) =
(Base‘𝐺) |
10 | 9, 2 | grpidcl 18522 |
. . . . . . . . . 10
⊢ (𝐺 ∈ Grp → 0 ∈
(Base‘𝐺)) |
11 | 10 | adantr 480 |
. . . . . . . . 9
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → 0 ∈ (Base‘𝐺)) |
12 | 11 | snssd 4739 |
. . . . . . . 8
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → { 0 } ⊆
(Base‘𝐺)) |
13 | 9, 1 | cntzsubg 18858 |
. . . . . . . 8
⊢ ((𝐺 ∈ Grp ∧ { 0 } ⊆
(Base‘𝐺)) →
((Cntz‘𝐺)‘{
0 })
∈ (SubGrp‘𝐺)) |
14 | 12, 13 | syldan 590 |
. . . . . . 7
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → ((Cntz‘𝐺)‘{ 0 }) ∈
(SubGrp‘𝐺)) |
15 | 2 | subg0cl 18678 |
. . . . . . 7
⊢
(((Cntz‘𝐺)‘{ 0 }) ∈
(SubGrp‘𝐺) →
0 ∈
((Cntz‘𝐺)‘{
0
})) |
16 | 14, 15 | syl 17 |
. . . . . 6
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → 0 ∈ ((Cntz‘𝐺)‘{ 0 })) |
17 | 16 | snssd 4739 |
. . . . 5
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → { 0 } ⊆
((Cntz‘𝐺)‘{
0
})) |
18 | 17 | adantr 480 |
. . . 4
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ (𝑦 ∈ 𝐼 ∧ 𝑧 ∈ 𝐼 ∧ 𝑦 ≠ 𝑧)) → { 0 } ⊆
((Cntz‘𝐺)‘{
0
})) |
19 | | simpr1 1192 |
. . . . 5
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ (𝑦 ∈ 𝐼 ∧ 𝑧 ∈ 𝐼 ∧ 𝑦 ≠ 𝑧)) → 𝑦 ∈ 𝐼) |
20 | | eqidd 2739 |
. . . . . 6
⊢ (𝑥 = 𝑦 → { 0 } = { 0 }) |
21 | | eqid 2738 |
. . . . . 6
⊢ (𝑥 ∈ 𝐼 ↦ { 0 }) = (𝑥 ∈ 𝐼 ↦ { 0 }) |
22 | | snex 5349 |
. . . . . 6
⊢ { 0 } ∈
V |
23 | 20, 21, 22 | fvmpt3i 6862 |
. . . . 5
⊢ (𝑦 ∈ 𝐼 → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) = { 0 }) |
24 | 19, 23 | syl 17 |
. . . 4
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ (𝑦 ∈ 𝐼 ∧ 𝑧 ∈ 𝐼 ∧ 𝑦 ≠ 𝑧)) → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) = { 0 }) |
25 | | simpr2 1193 |
. . . . . 6
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ (𝑦 ∈ 𝐼 ∧ 𝑧 ∈ 𝐼 ∧ 𝑦 ≠ 𝑧)) → 𝑧 ∈ 𝐼) |
26 | | eqidd 2739 |
. . . . . . 7
⊢ (𝑥 = 𝑧 → { 0 } = { 0 }) |
27 | 26, 21, 22 | fvmpt3i 6862 |
. . . . . 6
⊢ (𝑧 ∈ 𝐼 → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑧) = { 0 }) |
28 | 25, 27 | syl 17 |
. . . . 5
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ (𝑦 ∈ 𝐼 ∧ 𝑧 ∈ 𝐼 ∧ 𝑦 ≠ 𝑧)) → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑧) = { 0 }) |
29 | 28 | fveq2d 6760 |
. . . 4
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ (𝑦 ∈ 𝐼 ∧ 𝑧 ∈ 𝐼 ∧ 𝑦 ≠ 𝑧)) → ((Cntz‘𝐺)‘((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑧)) = ((Cntz‘𝐺)‘{ 0 })) |
30 | 18, 24, 29 | 3sstr4d 3964 |
. . 3
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ (𝑦 ∈ 𝐼 ∧ 𝑧 ∈ 𝐼 ∧ 𝑦 ≠ 𝑧)) → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ⊆ ((Cntz‘𝐺)‘((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑧))) |
31 | 23 | adantl 481 |
. . . . . 6
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) = { 0 }) |
32 | 31 | ineq1d 4142 |
. . . . 5
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → (((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) = ({ 0 } ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦}))))) |
33 | 9 | subgacs 18704 |
. . . . . . . . . . 11
⊢ (𝐺 ∈ Grp →
(SubGrp‘𝐺) ∈
(ACS‘(Base‘𝐺))) |
34 | 33 | ad2antrr 722 |
. . . . . . . . . 10
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → (SubGrp‘𝐺) ∈ (ACS‘(Base‘𝐺))) |
35 | 34 | acsmred 17282 |
. . . . . . . . 9
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → (SubGrp‘𝐺) ∈ (Moore‘(Base‘𝐺))) |
36 | | imassrn 5969 |
. . . . . . . . . . 11
⊢ ((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})) ⊆ ran (𝑥 ∈ 𝐼 ↦ { 0 }) |
37 | 8 | adantr 480 |
. . . . . . . . . . . . 13
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → (𝑥 ∈ 𝐼 ↦ { 0 }):𝐼⟶(SubGrp‘𝐺)) |
38 | 37 | frnd 6592 |
. . . . . . . . . . . 12
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ran (𝑥 ∈ 𝐼 ↦ { 0 }) ⊆
(SubGrp‘𝐺)) |
39 | | mresspw 17218 |
. . . . . . . . . . . . 13
⊢
((SubGrp‘𝐺)
∈ (Moore‘(Base‘𝐺)) → (SubGrp‘𝐺) ⊆ 𝒫 (Base‘𝐺)) |
40 | 35, 39 | syl 17 |
. . . . . . . . . . . 12
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → (SubGrp‘𝐺) ⊆ 𝒫 (Base‘𝐺)) |
41 | 38, 40 | sstrd 3927 |
. . . . . . . . . . 11
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ran (𝑥 ∈ 𝐼 ↦ { 0 }) ⊆ 𝒫
(Base‘𝐺)) |
42 | 36, 41 | sstrid 3928 |
. . . . . . . . . 10
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})) ⊆ 𝒫 (Base‘𝐺)) |
43 | | sspwuni 5025 |
. . . . . . . . . 10
⊢ (((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})) ⊆ 𝒫 (Base‘𝐺) ↔ ∪ ((𝑥
∈ 𝐼 ↦ { 0 }) “
(𝐼 ∖ {𝑦})) ⊆ (Base‘𝐺)) |
44 | 42, 43 | sylib 217 |
. . . . . . . . 9
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})) ⊆ (Base‘𝐺)) |
45 | 3 | mrccl 17237 |
. . . . . . . . 9
⊢
(((SubGrp‘𝐺)
∈ (Moore‘(Base‘𝐺)) ∧ ∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})) ⊆ (Base‘𝐺)) → ((mrCls‘(SubGrp‘𝐺))‘∪ ((𝑥
∈ 𝐼 ↦ { 0 }) “
(𝐼 ∖ {𝑦}))) ∈ (SubGrp‘𝐺)) |
46 | 35, 44, 45 | syl2anc 583 |
. . . . . . . 8
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ((mrCls‘(SubGrp‘𝐺))‘∪ ((𝑥
∈ 𝐼 ↦ { 0 }) “
(𝐼 ∖ {𝑦}))) ∈ (SubGrp‘𝐺)) |
47 | 2 | subg0cl 18678 |
. . . . . . . 8
⊢
(((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦}))) ∈ (SubGrp‘𝐺) → 0 ∈
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) |
48 | 46, 47 | syl 17 |
. . . . . . 7
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → 0 ∈
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) |
49 | 48 | snssd 4739 |
. . . . . 6
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → { 0 } ⊆
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) |
50 | | df-ss 3900 |
. . . . . 6
⊢ ({ 0 } ⊆
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦}))) ↔ ({ 0 } ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) = { 0 }) |
51 | 49, 50 | sylib 217 |
. . . . 5
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ({ 0 } ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) = { 0 }) |
52 | 32, 51 | eqtrd 2778 |
. . . 4
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → (((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) = { 0 }) |
53 | | eqimss 3973 |
. . . 4
⊢ ((((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) = { 0 } → (((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) ⊆ { 0 }) |
54 | 52, 53 | syl 17 |
. . 3
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → (((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ∩
((mrCls‘(SubGrp‘𝐺))‘∪
((𝑥 ∈ 𝐼 ↦ { 0 }) “ (𝐼 ∖ {𝑦})))) ⊆ { 0 }) |
55 | 1, 2, 3, 4, 5, 8, 30, 54 | dmdprdd 19517 |
. 2
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → 𝐺dom DProd (𝑥 ∈ 𝐼 ↦ { 0 })) |
56 | 21, 7 | dmmptd 6562 |
. . . 4
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → dom (𝑥 ∈ 𝐼 ↦ { 0 }) = 𝐼) |
57 | 6 | adantr 480 |
. . . 4
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → { 0 } ∈
(SubGrp‘𝐺)) |
58 | | eqimss 3973 |
. . . . 5
⊢ (((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) = { 0 } → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ⊆ { 0 }) |
59 | 31, 58 | syl 17 |
. . . 4
⊢ (((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) ∧ 𝑦 ∈ 𝐼) → ((𝑥 ∈ 𝐼 ↦ { 0 })‘𝑦) ⊆ { 0 }) |
60 | 55, 56, 57, 59 | dprdlub 19544 |
. . 3
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → (𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 })) ⊆ { 0
}) |
61 | | dprdsubg 19542 |
. . . . 5
⊢ (𝐺dom DProd (𝑥 ∈ 𝐼 ↦ { 0 }) → (𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 })) ∈
(SubGrp‘𝐺)) |
62 | 2 | subg0cl 18678 |
. . . . 5
⊢ ((𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 })) ∈
(SubGrp‘𝐺) →
0 ∈
(𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 }))) |
63 | 55, 61, 62 | 3syl 18 |
. . . 4
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → 0 ∈ (𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 }))) |
64 | 63 | snssd 4739 |
. . 3
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → { 0 } ⊆ (𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 }))) |
65 | 60, 64 | eqssd 3934 |
. 2
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → (𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 })) = { 0 }) |
66 | 55, 65 | jca 511 |
1
⊢ ((𝐺 ∈ Grp ∧ 𝐼 ∈ 𝑉) → (𝐺dom DProd (𝑥 ∈ 𝐼 ↦ { 0 }) ∧ (𝐺 DProd (𝑥 ∈ 𝐼 ↦ { 0 })) = { 0 })) |