Step | Hyp | Ref
| Expression |
1 | | srgpcomp.k |
. 2
⊢ (𝜑 → 𝐾 ∈
ℕ0) |
2 | | oveq1 7282 |
. . . . . 6
⊢ (𝑥 = 0 → (𝑥 ↑ 𝐵) = (0 ↑ 𝐵)) |
3 | 2 | oveq1d 7290 |
. . . . 5
⊢ (𝑥 = 0 → ((𝑥 ↑ 𝐵) × 𝐴) = ((0 ↑ 𝐵) × 𝐴)) |
4 | 2 | oveq2d 7291 |
. . . . 5
⊢ (𝑥 = 0 → (𝐴 × (𝑥 ↑ 𝐵)) = (𝐴 × (0 ↑ 𝐵))) |
5 | 3, 4 | eqeq12d 2754 |
. . . 4
⊢ (𝑥 = 0 → (((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵)) ↔ ((0 ↑ 𝐵) × 𝐴) = (𝐴 × (0 ↑ 𝐵)))) |
6 | 5 | imbi2d 341 |
. . 3
⊢ (𝑥 = 0 → ((𝜑 → ((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵))) ↔ (𝜑 → ((0 ↑ 𝐵) × 𝐴) = (𝐴 × (0 ↑ 𝐵))))) |
7 | | oveq1 7282 |
. . . . . 6
⊢ (𝑥 = 𝑦 → (𝑥 ↑ 𝐵) = (𝑦 ↑ 𝐵)) |
8 | 7 | oveq1d 7290 |
. . . . 5
⊢ (𝑥 = 𝑦 → ((𝑥 ↑ 𝐵) × 𝐴) = ((𝑦 ↑ 𝐵) × 𝐴)) |
9 | 7 | oveq2d 7291 |
. . . . 5
⊢ (𝑥 = 𝑦 → (𝐴 × (𝑥 ↑ 𝐵)) = (𝐴 × (𝑦 ↑ 𝐵))) |
10 | 8, 9 | eqeq12d 2754 |
. . . 4
⊢ (𝑥 = 𝑦 → (((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵)) ↔ ((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵)))) |
11 | 10 | imbi2d 341 |
. . 3
⊢ (𝑥 = 𝑦 → ((𝜑 → ((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵))) ↔ (𝜑 → ((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵))))) |
12 | | oveq1 7282 |
. . . . . 6
⊢ (𝑥 = (𝑦 + 1) → (𝑥 ↑ 𝐵) = ((𝑦 + 1) ↑ 𝐵)) |
13 | 12 | oveq1d 7290 |
. . . . 5
⊢ (𝑥 = (𝑦 + 1) → ((𝑥 ↑ 𝐵) × 𝐴) = (((𝑦 + 1) ↑ 𝐵) × 𝐴)) |
14 | 12 | oveq2d 7291 |
. . . . 5
⊢ (𝑥 = (𝑦 + 1) → (𝐴 × (𝑥 ↑ 𝐵)) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))) |
15 | 13, 14 | eqeq12d 2754 |
. . . 4
⊢ (𝑥 = (𝑦 + 1) → (((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵)) ↔ (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (𝐴 × ((𝑦 + 1) ↑ 𝐵)))) |
16 | 15 | imbi2d 341 |
. . 3
⊢ (𝑥 = (𝑦 + 1) → ((𝜑 → ((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵))) ↔ (𝜑 → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))))) |
17 | | oveq1 7282 |
. . . . . 6
⊢ (𝑥 = 𝐾 → (𝑥 ↑ 𝐵) = (𝐾 ↑ 𝐵)) |
18 | 17 | oveq1d 7290 |
. . . . 5
⊢ (𝑥 = 𝐾 → ((𝑥 ↑ 𝐵) × 𝐴) = ((𝐾 ↑ 𝐵) × 𝐴)) |
19 | 17 | oveq2d 7291 |
. . . . 5
⊢ (𝑥 = 𝐾 → (𝐴 × (𝑥 ↑ 𝐵)) = (𝐴 × (𝐾 ↑ 𝐵))) |
20 | 18, 19 | eqeq12d 2754 |
. . . 4
⊢ (𝑥 = 𝐾 → (((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵)) ↔ ((𝐾 ↑ 𝐵) × 𝐴) = (𝐴 × (𝐾 ↑ 𝐵)))) |
21 | 20 | imbi2d 341 |
. . 3
⊢ (𝑥 = 𝐾 → ((𝜑 → ((𝑥 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑥 ↑ 𝐵))) ↔ (𝜑 → ((𝐾 ↑ 𝐵) × 𝐴) = (𝐴 × (𝐾 ↑ 𝐵))))) |
22 | | srgpcomp.b |
. . . . . 6
⊢ (𝜑 → 𝐵 ∈ 𝑆) |
23 | | srgpcomp.g |
. . . . . . . 8
⊢ 𝐺 = (mulGrp‘𝑅) |
24 | | srgpcomp.s |
. . . . . . . 8
⊢ 𝑆 = (Base‘𝑅) |
25 | 23, 24 | mgpbas 19726 |
. . . . . . 7
⊢ 𝑆 = (Base‘𝐺) |
26 | | eqid 2738 |
. . . . . . . 8
⊢
(1r‘𝑅) = (1r‘𝑅) |
27 | 23, 26 | ringidval 19739 |
. . . . . . 7
⊢
(1r‘𝑅) = (0g‘𝐺) |
28 | | srgpcomp.e |
. . . . . . 7
⊢ ↑ =
(.g‘𝐺) |
29 | 25, 27, 28 | mulg0 18707 |
. . . . . 6
⊢ (𝐵 ∈ 𝑆 → (0 ↑ 𝐵) = (1r‘𝑅)) |
30 | 22, 29 | syl 17 |
. . . . 5
⊢ (𝜑 → (0 ↑ 𝐵) = (1r‘𝑅)) |
31 | 30 | oveq1d 7290 |
. . . 4
⊢ (𝜑 → ((0 ↑ 𝐵) × 𝐴) = ((1r‘𝑅) × 𝐴)) |
32 | | srgpcomp.r |
. . . . . 6
⊢ (𝜑 → 𝑅 ∈ SRing) |
33 | | srgpcomp.a |
. . . . . 6
⊢ (𝜑 → 𝐴 ∈ 𝑆) |
34 | | srgpcomp.m |
. . . . . . 7
⊢ × =
(.r‘𝑅) |
35 | 24, 34, 26 | srgridm 19758 |
. . . . . 6
⊢ ((𝑅 ∈ SRing ∧ 𝐴 ∈ 𝑆) → (𝐴 ×
(1r‘𝑅)) =
𝐴) |
36 | 32, 33, 35 | syl2anc 584 |
. . . . 5
⊢ (𝜑 → (𝐴 ×
(1r‘𝑅)) =
𝐴) |
37 | 30 | oveq2d 7291 |
. . . . 5
⊢ (𝜑 → (𝐴 × (0 ↑ 𝐵)) = (𝐴 ×
(1r‘𝑅))) |
38 | 24, 34, 26 | srglidm 19757 |
. . . . . 6
⊢ ((𝑅 ∈ SRing ∧ 𝐴 ∈ 𝑆) → ((1r‘𝑅) × 𝐴) = 𝐴) |
39 | 32, 33, 38 | syl2anc 584 |
. . . . 5
⊢ (𝜑 →
((1r‘𝑅)
×
𝐴) = 𝐴) |
40 | 36, 37, 39 | 3eqtr4rd 2789 |
. . . 4
⊢ (𝜑 →
((1r‘𝑅)
×
𝐴) = (𝐴 × (0 ↑ 𝐵))) |
41 | 31, 40 | eqtrd 2778 |
. . 3
⊢ (𝜑 → ((0 ↑ 𝐵) × 𝐴) = (𝐴 × (0 ↑ 𝐵))) |
42 | 23 | srgmgp 19746 |
. . . . . . . . . . . . 13
⊢ (𝑅 ∈ SRing → 𝐺 ∈ Mnd) |
43 | 32, 42 | syl 17 |
. . . . . . . . . . . 12
⊢ (𝜑 → 𝐺 ∈ Mnd) |
44 | 43 | adantr 481 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → 𝐺 ∈ Mnd) |
45 | | simpr 485 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → 𝑦 ∈
ℕ0) |
46 | 22 | adantr 481 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → 𝐵 ∈ 𝑆) |
47 | 23, 34 | mgpplusg 19724 |
. . . . . . . . . . . 12
⊢ × =
(+g‘𝐺) |
48 | 25, 28, 47 | mulgnn0p1 18715 |
. . . . . . . . . . 11
⊢ ((𝐺 ∈ Mnd ∧ 𝑦 ∈ ℕ0
∧ 𝐵 ∈ 𝑆) → ((𝑦 + 1) ↑ 𝐵) = ((𝑦 ↑ 𝐵) × 𝐵)) |
49 | 44, 45, 46, 48 | syl3anc 1370 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → ((𝑦 + 1) ↑ 𝐵) = ((𝑦 ↑ 𝐵) × 𝐵)) |
50 | 49 | oveq1d 7290 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (((𝑦 ↑ 𝐵) × 𝐵) × 𝐴)) |
51 | | srgpcomp.c |
. . . . . . . . . . . . 13
⊢ (𝜑 → (𝐴 × 𝐵) = (𝐵 × 𝐴)) |
52 | 51 | eqcomd 2744 |
. . . . . . . . . . . 12
⊢ (𝜑 → (𝐵 × 𝐴) = (𝐴 × 𝐵)) |
53 | 52 | adantr 481 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (𝐵 × 𝐴) = (𝐴 × 𝐵)) |
54 | 53 | oveq2d 7291 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → ((𝑦 ↑ 𝐵) × (𝐵 × 𝐴)) = ((𝑦 ↑ 𝐵) × (𝐴 × 𝐵))) |
55 | 32 | adantr 481 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → 𝑅 ∈ SRing) |
56 | 25, 28 | mulgnn0cl 18720 |
. . . . . . . . . . . 12
⊢ ((𝐺 ∈ Mnd ∧ 𝑦 ∈ ℕ0
∧ 𝐵 ∈ 𝑆) → (𝑦 ↑ 𝐵) ∈ 𝑆) |
57 | 44, 45, 46, 56 | syl3anc 1370 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (𝑦 ↑ 𝐵) ∈ 𝑆) |
58 | 33 | adantr 481 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → 𝐴 ∈ 𝑆) |
59 | 24, 34 | srgass 19749 |
. . . . . . . . . . 11
⊢ ((𝑅 ∈ SRing ∧ ((𝑦 ↑ 𝐵) ∈ 𝑆 ∧ 𝐵 ∈ 𝑆 ∧ 𝐴 ∈ 𝑆)) → (((𝑦 ↑ 𝐵) × 𝐵) × 𝐴) = ((𝑦 ↑ 𝐵) × (𝐵 × 𝐴))) |
60 | 55, 57, 46, 58, 59 | syl13anc 1371 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (((𝑦 ↑ 𝐵) × 𝐵) × 𝐴) = ((𝑦 ↑ 𝐵) × (𝐵 × 𝐴))) |
61 | 24, 34 | srgass 19749 |
. . . . . . . . . . 11
⊢ ((𝑅 ∈ SRing ∧ ((𝑦 ↑ 𝐵) ∈ 𝑆 ∧ 𝐴 ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)) → (((𝑦 ↑ 𝐵) × 𝐴) × 𝐵) = ((𝑦 ↑ 𝐵) × (𝐴 × 𝐵))) |
62 | 55, 57, 58, 46, 61 | syl13anc 1371 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (((𝑦 ↑ 𝐵) × 𝐴) × 𝐵) = ((𝑦 ↑ 𝐵) × (𝐴 × 𝐵))) |
63 | 54, 60, 62 | 3eqtr4d 2788 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (((𝑦 ↑ 𝐵) × 𝐵) × 𝐴) = (((𝑦 ↑ 𝐵) × 𝐴) × 𝐵)) |
64 | 50, 63 | eqtrd 2778 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (((𝑦 ↑ 𝐵) × 𝐴) × 𝐵)) |
65 | 64 | adantr 481 |
. . . . . . 7
⊢ (((𝜑 ∧ 𝑦 ∈ ℕ0) ∧ ((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵))) → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (((𝑦 ↑ 𝐵) × 𝐴) × 𝐵)) |
66 | | oveq1 7282 |
. . . . . . . 8
⊢ (((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵)) → (((𝑦 ↑ 𝐵) × 𝐴) × 𝐵) = ((𝐴 × (𝑦 ↑ 𝐵)) × 𝐵)) |
67 | 24, 34 | srgass 19749 |
. . . . . . . . . 10
⊢ ((𝑅 ∈ SRing ∧ (𝐴 ∈ 𝑆 ∧ (𝑦 ↑ 𝐵) ∈ 𝑆 ∧ 𝐵 ∈ 𝑆)) → ((𝐴 × (𝑦 ↑ 𝐵)) × 𝐵) = (𝐴 × ((𝑦 ↑ 𝐵) × 𝐵))) |
68 | 55, 58, 57, 46, 67 | syl13anc 1371 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → ((𝐴 × (𝑦 ↑ 𝐵)) × 𝐵) = (𝐴 × ((𝑦 ↑ 𝐵) × 𝐵))) |
69 | 49 | eqcomd 2744 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → ((𝑦 ↑ 𝐵) × 𝐵) = ((𝑦 + 1) ↑ 𝐵)) |
70 | 69 | oveq2d 7291 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (𝐴 × ((𝑦 ↑ 𝐵) × 𝐵)) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))) |
71 | 68, 70 | eqtrd 2778 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → ((𝐴 × (𝑦 ↑ 𝐵)) × 𝐵) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))) |
72 | 66, 71 | sylan9eqr 2800 |
. . . . . . 7
⊢ (((𝜑 ∧ 𝑦 ∈ ℕ0) ∧ ((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵))) → (((𝑦 ↑ 𝐵) × 𝐴) × 𝐵) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))) |
73 | 65, 72 | eqtrd 2778 |
. . . . . 6
⊢ (((𝜑 ∧ 𝑦 ∈ ℕ0) ∧ ((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵))) → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))) |
74 | 73 | ex 413 |
. . . . 5
⊢ ((𝜑 ∧ 𝑦 ∈ ℕ0) → (((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵)) → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (𝐴 × ((𝑦 + 1) ↑ 𝐵)))) |
75 | 74 | expcom 414 |
. . . 4
⊢ (𝑦 ∈ ℕ0
→ (𝜑 → (((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵)) → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))))) |
76 | 75 | a2d 29 |
. . 3
⊢ (𝑦 ∈ ℕ0
→ ((𝜑 → ((𝑦 ↑ 𝐵) × 𝐴) = (𝐴 × (𝑦 ↑ 𝐵))) → (𝜑 → (((𝑦 + 1) ↑ 𝐵) × 𝐴) = (𝐴 × ((𝑦 + 1) ↑ 𝐵))))) |
77 | 6, 11, 16, 21, 41, 76 | nn0ind 12415 |
. 2
⊢ (𝐾 ∈ ℕ0
→ (𝜑 → ((𝐾 ↑ 𝐵) × 𝐴) = (𝐴 × (𝐾 ↑ 𝐵)))) |
78 | 1, 77 | mpcom 38 |
1
⊢ (𝜑 → ((𝐾 ↑ 𝐵) × 𝐴) = (𝐴 × (𝐾 ↑ 𝐵))) |