| Step | Hyp | Ref
| Expression |
| 1 | | nn0uz 12920 |
. 2
⊢
ℕ0 = (ℤ≥‘0) |
| 2 | | nnuz 12921 |
. 2
⊢ ℕ =
(ℤ≥‘1) |
| 3 | | 0zd 12625 |
. 2
⊢ (𝜑 → 0 ∈
ℤ) |
| 4 | | 1zzd 12648 |
. 2
⊢ (𝜑 → 1 ∈
ℤ) |
| 5 | | 2nn0 12543 |
. . . . . 6
⊢ 2 ∈
ℕ0 |
| 6 | 5 | a1i 11 |
. . . . 5
⊢ (𝜑 → 2 ∈
ℕ0) |
| 7 | | nn0mulcl 12562 |
. . . . 5
⊢ ((2
∈ ℕ0 ∧ 𝑚 ∈ ℕ0) → (2
· 𝑚) ∈
ℕ0) |
| 8 | 6, 7 | sylan 580 |
. . . 4
⊢ ((𝜑 ∧ 𝑚 ∈ ℕ0) → (2
· 𝑚) ∈
ℕ0) |
| 9 | | nn0p1nn 12565 |
. . . 4
⊢ ((2
· 𝑚) ∈
ℕ0 → ((2 · 𝑚) + 1) ∈ ℕ) |
| 10 | 8, 9 | syl 17 |
. . 3
⊢ ((𝜑 ∧ 𝑚 ∈ ℕ0) → ((2
· 𝑚) + 1) ∈
ℕ) |
| 11 | 10 | fmpttd 7135 |
. 2
⊢ (𝜑 → (𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1)):ℕ0⟶ℕ) |
| 12 | | nn0mulcl 12562 |
. . . . . 6
⊢ ((2
∈ ℕ0 ∧ 𝑖 ∈ ℕ0) → (2
· 𝑖) ∈
ℕ0) |
| 13 | 6, 12 | sylan 580 |
. . . . 5
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (2
· 𝑖) ∈
ℕ0) |
| 14 | 13 | nn0red 12588 |
. . . 4
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (2
· 𝑖) ∈
ℝ) |
| 15 | | peano2nn0 12566 |
. . . . . 6
⊢ (𝑖 ∈ ℕ0
→ (𝑖 + 1) ∈
ℕ0) |
| 16 | | nn0mulcl 12562 |
. . . . . 6
⊢ ((2
∈ ℕ0 ∧ (𝑖 + 1) ∈ ℕ0) → (2
· (𝑖 + 1)) ∈
ℕ0) |
| 17 | 6, 15, 16 | syl2an 596 |
. . . . 5
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (2
· (𝑖 + 1)) ∈
ℕ0) |
| 18 | 17 | nn0red 12588 |
. . . 4
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (2
· (𝑖 + 1)) ∈
ℝ) |
| 19 | | 1red 11262 |
. . . 4
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 1 ∈
ℝ) |
| 20 | | nn0re 12535 |
. . . . . . 7
⊢ (𝑖 ∈ ℕ0
→ 𝑖 ∈
ℝ) |
| 21 | 20 | adantl 481 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑖 ∈
ℝ) |
| 22 | 21 | ltp1d 12198 |
. . . . 5
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑖 < (𝑖 + 1)) |
| 23 | | 1red 11262 |
. . . . . . . 8
⊢ (𝑖 ∈ ℕ0
→ 1 ∈ ℝ) |
| 24 | 20, 23 | readdcld 11290 |
. . . . . . 7
⊢ (𝑖 ∈ ℕ0
→ (𝑖 + 1) ∈
ℝ) |
| 25 | | 2rp 13039 |
. . . . . . . 8
⊢ 2 ∈
ℝ+ |
| 26 | 25 | a1i 11 |
. . . . . . 7
⊢ (𝑖 ∈ ℕ0
→ 2 ∈ ℝ+) |
| 27 | 20, 24, 26 | ltmul2d 13119 |
. . . . . 6
⊢ (𝑖 ∈ ℕ0
→ (𝑖 < (𝑖 + 1) ↔ (2 · 𝑖) < (2 · (𝑖 + 1)))) |
| 28 | 27 | adantl 481 |
. . . . 5
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑖 < (𝑖 + 1) ↔ (2 · 𝑖) < (2 · (𝑖 + 1)))) |
| 29 | 22, 28 | mpbid 232 |
. . . 4
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (2
· 𝑖) < (2
· (𝑖 +
1))) |
| 30 | 14, 18, 19, 29 | ltadd1dd 11874 |
. . 3
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((2
· 𝑖) + 1) < ((2
· (𝑖 + 1)) +
1)) |
| 31 | | oveq2 7439 |
. . . . . 6
⊢ (𝑚 = 𝑖 → (2 · 𝑚) = (2 · 𝑖)) |
| 32 | 31 | oveq1d 7446 |
. . . . 5
⊢ (𝑚 = 𝑖 → ((2 · 𝑚) + 1) = ((2 · 𝑖) + 1)) |
| 33 | | eqid 2737 |
. . . . 5
⊢ (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)) = (𝑚 ∈
ℕ0 ↦ ((2 · 𝑚) + 1)) |
| 34 | | ovex 7464 |
. . . . 5
⊢ ((2
· 𝑖) + 1) ∈
V |
| 35 | 32, 33, 34 | fvmpt 7016 |
. . . 4
⊢ (𝑖 ∈ ℕ0
→ ((𝑚 ∈
ℕ0 ↦ ((2 · 𝑚) + 1))‘𝑖) = ((2 · 𝑖) + 1)) |
| 36 | 35 | adantl 481 |
. . 3
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1))‘𝑖) = ((2 ·
𝑖) + 1)) |
| 37 | 15 | adantl 481 |
. . . 4
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → (𝑖 + 1) ∈
ℕ0) |
| 38 | | oveq2 7439 |
. . . . . 6
⊢ (𝑚 = (𝑖 + 1) → (2 · 𝑚) = (2 · (𝑖 + 1))) |
| 39 | 38 | oveq1d 7446 |
. . . . 5
⊢ (𝑚 = (𝑖 + 1) → ((2 · 𝑚) + 1) = ((2 · (𝑖 + 1)) + 1)) |
| 40 | | ovex 7464 |
. . . . 5
⊢ ((2
· (𝑖 + 1)) + 1)
∈ V |
| 41 | 39, 33, 40 | fvmpt 7016 |
. . . 4
⊢ ((𝑖 + 1) ∈ ℕ0
→ ((𝑚 ∈
ℕ0 ↦ ((2 · 𝑚) + 1))‘(𝑖 + 1)) = ((2 · (𝑖 + 1)) + 1)) |
| 42 | 37, 41 | syl 17 |
. . 3
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1))‘(𝑖 + 1)) = ((2
· (𝑖 + 1)) +
1)) |
| 43 | 30, 36, 42 | 3brtr4d 5175 |
. 2
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1))‘𝑖) < ((𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1))‘(𝑖 +
1))) |
| 44 | | eldifi 4131 |
. . . . . . 7
⊢ (𝑛 ∈ (ℕ ∖ ran
(𝑚 ∈
ℕ0 ↦ ((2 · 𝑚) + 1))) → 𝑛 ∈ ℕ) |
| 45 | | simpr 484 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℕ) |
| 46 | | 0cnd 11254 |
. . . . . . . . 9
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 2 ∥ 𝑛) → 0 ∈
ℂ) |
| 47 | | nnz 12634 |
. . . . . . . . . . . . . 14
⊢ (𝑛 ∈ ℕ → 𝑛 ∈
ℤ) |
| 48 | 47 | adantl 481 |
. . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℤ) |
| 49 | | odd2np1 16378 |
. . . . . . . . . . . . 13
⊢ (𝑛 ∈ ℤ → (¬ 2
∥ 𝑛 ↔
∃𝑘 ∈ ℤ ((2
· 𝑘) + 1) = 𝑛)) |
| 50 | 48, 49 | syl 17 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (¬ 2 ∥
𝑛 ↔ ∃𝑘 ∈ ℤ ((2 ·
𝑘) + 1) = 𝑛)) |
| 51 | | simprl 771 |
. . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 𝑘 ∈ ℤ) |
| 52 | | nnm1nn0 12567 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (𝑛 ∈ ℕ → (𝑛 − 1) ∈
ℕ0) |
| 53 | 52 | ad2antlr 727 |
. . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → (𝑛 − 1) ∈
ℕ0) |
| 54 | 53 | nn0red 12588 |
. . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → (𝑛 − 1) ∈ ℝ) |
| 55 | 25 | a1i 11 |
. . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 2 ∈
ℝ+) |
| 56 | 53 | nn0ge0d 12590 |
. . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 0 ≤ (𝑛 − 1)) |
| 57 | 54, 55, 56 | divge0d 13117 |
. . . . . . . . . . . . . . . . 17
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 0 ≤ ((𝑛 − 1) / 2)) |
| 58 | | simprr 773 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → ((2 · 𝑘) + 1) = 𝑛) |
| 59 | 58 | oveq1d 7446 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → (((2 · 𝑘) + 1) − 1) = (𝑛 − 1)) |
| 60 | | 2cn 12341 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ 2 ∈
ℂ |
| 61 | | zcn 12618 |
. . . . . . . . . . . . . . . . . . . . . . 23
⊢ (𝑘 ∈ ℤ → 𝑘 ∈
ℂ) |
| 62 | 61 | ad2antrl 728 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 𝑘 ∈ ℂ) |
| 63 | | mulcl 11239 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ ((2
∈ ℂ ∧ 𝑘
∈ ℂ) → (2 · 𝑘) ∈ ℂ) |
| 64 | 60, 62, 63 | sylancr 587 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → (2 · 𝑘) ∈ ℂ) |
| 65 | | ax-1cn 11213 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ 1 ∈
ℂ |
| 66 | | pncan 11514 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (((2
· 𝑘) ∈ ℂ
∧ 1 ∈ ℂ) → (((2 · 𝑘) + 1) − 1) = (2 · 𝑘)) |
| 67 | 64, 65, 66 | sylancl 586 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → (((2 · 𝑘) + 1) − 1) = (2 · 𝑘)) |
| 68 | 59, 67 | eqtr3d 2779 |
. . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → (𝑛 − 1) = (2 · 𝑘)) |
| 69 | 68 | oveq1d 7446 |
. . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → ((𝑛 − 1) / 2) = ((2 · 𝑘) / 2)) |
| 70 | | 2cnd 12344 |
. . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 2 ∈ ℂ) |
| 71 | | 2ne0 12370 |
. . . . . . . . . . . . . . . . . . . 20
⊢ 2 ≠
0 |
| 72 | 71 | a1i 11 |
. . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 2 ≠ 0) |
| 73 | 62, 70, 72 | divcan3d 12048 |
. . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → ((2 · 𝑘) / 2) = 𝑘) |
| 74 | 69, 73 | eqtrd 2777 |
. . . . . . . . . . . . . . . . 17
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → ((𝑛 − 1) / 2) = 𝑘) |
| 75 | 57, 74 | breqtrd 5169 |
. . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 0 ≤ 𝑘) |
| 76 | | elnn0z 12626 |
. . . . . . . . . . . . . . . 16
⊢ (𝑘 ∈ ℕ0
↔ (𝑘 ∈ ℤ
∧ 0 ≤ 𝑘)) |
| 77 | 51, 75, 76 | sylanbrc 583 |
. . . . . . . . . . . . . . 15
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ (𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛)) → 𝑘 ∈ ℕ0) |
| 78 | 77 | ex 412 |
. . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → ((𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛) → 𝑘 ∈
ℕ0)) |
| 79 | | simpr 484 |
. . . . . . . . . . . . . . 15
⊢ ((𝑘 ∈ ℤ ∧ ((2
· 𝑘) + 1) = 𝑛) → ((2 · 𝑘) + 1) = 𝑛) |
| 80 | 79 | eqcomd 2743 |
. . . . . . . . . . . . . 14
⊢ ((𝑘 ∈ ℤ ∧ ((2
· 𝑘) + 1) = 𝑛) → 𝑛 = ((2 · 𝑘) + 1)) |
| 81 | 78, 80 | jca2 513 |
. . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → ((𝑘 ∈ ℤ ∧ ((2 · 𝑘) + 1) = 𝑛) → (𝑘 ∈ ℕ0 ∧ 𝑛 = ((2 · 𝑘) + 1)))) |
| 82 | 81 | reximdv2 3164 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (∃𝑘 ∈ ℤ ((2 ·
𝑘) + 1) = 𝑛 → ∃𝑘 ∈ ℕ0
𝑛 = ((2 · 𝑘) + 1))) |
| 83 | 50, 82 | sylbid 240 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (¬ 2 ∥
𝑛 → ∃𝑘 ∈ ℕ0
𝑛 = ((2 · 𝑘) + 1))) |
| 84 | | iserodd.f |
. . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 𝐶 ∈
ℂ) |
| 85 | | iserodd.h |
. . . . . . . . . . . . . . 15
⊢ (𝑛 = ((2 · 𝑘) + 1) → 𝐵 = 𝐶) |
| 86 | 85 | eleq1d 2826 |
. . . . . . . . . . . . . 14
⊢ (𝑛 = ((2 · 𝑘) + 1) → (𝐵 ∈ ℂ ↔ 𝐶 ∈ ℂ)) |
| 87 | 84, 86 | syl5ibrcom 247 |
. . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → (𝑛 = ((2 · 𝑘) + 1) → 𝐵 ∈ ℂ)) |
| 88 | 87 | rexlimdva 3155 |
. . . . . . . . . . . 12
⊢ (𝜑 → (∃𝑘 ∈ ℕ0 𝑛 = ((2 · 𝑘) + 1) → 𝐵 ∈ ℂ)) |
| 89 | 88 | adantr 480 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (∃𝑘 ∈ ℕ0
𝑛 = ((2 · 𝑘) + 1) → 𝐵 ∈ ℂ)) |
| 90 | 83, 89 | syld 47 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (¬ 2 ∥
𝑛 → 𝐵 ∈ ℂ)) |
| 91 | 90 | imp 406 |
. . . . . . . . 9
⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ ¬ 2 ∥ 𝑛) → 𝐵 ∈ ℂ) |
| 92 | 46, 91 | ifclda 4561 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → if(2 ∥ 𝑛, 0, 𝐵) ∈ ℂ) |
| 93 | | eqid 2737 |
. . . . . . . . 9
⊢ (𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵)) = (𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵)) |
| 94 | 93 | fvmpt2 7027 |
. . . . . . . 8
⊢ ((𝑛 ∈ ℕ ∧ if(2
∥ 𝑛, 0, 𝐵) ∈ ℂ) → ((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘𝑛) = if(2 ∥ 𝑛, 0, 𝐵)) |
| 95 | 45, 92, 94 | syl2anc 584 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑛) = if(2 ∥ 𝑛, 0, 𝐵)) |
| 96 | 44, 95 | sylan2 593 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑛 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))) → ((𝑛 ∈
ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑛) = if(2 ∥ 𝑛, 0, 𝐵)) |
| 97 | | eldif 3961 |
. . . . . . . 8
⊢ (𝑛 ∈ (ℕ ∖ ran
(𝑚 ∈
ℕ0 ↦ ((2 · 𝑚) + 1))) ↔ (𝑛 ∈ ℕ ∧ ¬ 𝑛 ∈ ran (𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1)))) |
| 98 | | oveq2 7439 |
. . . . . . . . . . . . . . 15
⊢ (𝑚 = 𝑘 → (2 · 𝑚) = (2 · 𝑘)) |
| 99 | 98 | oveq1d 7446 |
. . . . . . . . . . . . . 14
⊢ (𝑚 = 𝑘 → ((2 · 𝑚) + 1) = ((2 · 𝑘) + 1)) |
| 100 | 99 | cbvmptv 5255 |
. . . . . . . . . . . . 13
⊢ (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)) = (𝑘 ∈
ℕ0 ↦ ((2 · 𝑘) + 1)) |
| 101 | 100 | elrnmpt 5969 |
. . . . . . . . . . . 12
⊢ (𝑛 ∈ V → (𝑛 ∈ ran (𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) + 1)) ↔
∃𝑘 ∈
ℕ0 𝑛 = ((2
· 𝑘) +
1))) |
| 102 | 101 | elv 3485 |
. . . . . . . . . . 11
⊢ (𝑛 ∈ ran (𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) + 1)) ↔
∃𝑘 ∈
ℕ0 𝑛 = ((2
· 𝑘) +
1)) |
| 103 | 83, 102 | imbitrrdi 252 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (¬ 2 ∥
𝑛 → 𝑛 ∈ ran (𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1)))) |
| 104 | 103 | con1d 145 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (¬ 𝑛 ∈ ran (𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) + 1)) → 2
∥ 𝑛)) |
| 105 | 104 | impr 454 |
. . . . . . . 8
⊢ ((𝜑 ∧ (𝑛 ∈ ℕ ∧ ¬ 𝑛 ∈ ran (𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) + 1)))) →
2 ∥ 𝑛) |
| 106 | 97, 105 | sylan2b 594 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑛 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))) → 2 ∥ 𝑛) |
| 107 | 106 | iftrued 4533 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑛 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))) → if(2 ∥ 𝑛, 0, 𝐵) = 0) |
| 108 | 96, 107 | eqtrd 2777 |
. . . . 5
⊢ ((𝜑 ∧ 𝑛 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))) → ((𝑛 ∈
ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑛) = 0) |
| 109 | 108 | ralrimiva 3146 |
. . . 4
⊢ (𝜑 → ∀𝑛 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))((𝑛 ∈ ℕ
↦ if(2 ∥ 𝑛, 0,
𝐵))‘𝑛) = 0) |
| 110 | | nfv 1914 |
. . . . 5
⊢
Ⅎ𝑗((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘𝑛) = 0 |
| 111 | | nffvmpt1 6917 |
. . . . . 6
⊢
Ⅎ𝑛((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑗) |
| 112 | 111 | nfeq1 2921 |
. . . . 5
⊢
Ⅎ𝑛((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘𝑗) = 0 |
| 113 | | fveqeq2 6915 |
. . . . 5
⊢ (𝑛 = 𝑗 → (((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑛) = 0 ↔ ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑗) = 0)) |
| 114 | 110, 112,
113 | cbvralw 3306 |
. . . 4
⊢
(∀𝑛 ∈
(ℕ ∖ ran (𝑚
∈ ℕ0 ↦ ((2 · 𝑚) + 1)))((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑛) = 0 ↔ ∀𝑗 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))((𝑛 ∈ ℕ
↦ if(2 ∥ 𝑛, 0,
𝐵))‘𝑗) = 0) |
| 115 | 109, 114 | sylib 218 |
. . 3
⊢ (𝜑 → ∀𝑗 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))((𝑛 ∈ ℕ
↦ if(2 ∥ 𝑛, 0,
𝐵))‘𝑗) = 0) |
| 116 | 115 | r19.21bi 3251 |
. 2
⊢ ((𝜑 ∧ 𝑗 ∈ (ℕ ∖ ran (𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1)))) → ((𝑛 ∈
ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑗) = 0) |
| 117 | 92 | fmpttd 7135 |
. . 3
⊢ (𝜑 → (𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵)):ℕ⟶ℂ) |
| 118 | 117 | ffvelcdmda 7104 |
. 2
⊢ ((𝜑 ∧ 𝑗 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘𝑗) ∈ ℂ) |
| 119 | | simpr 484 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 𝑘 ∈
ℕ0) |
| 120 | | eqid 2737 |
. . . . . . . 8
⊢ (𝑘 ∈ ℕ0
↦ 𝐶) = (𝑘 ∈ ℕ0
↦ 𝐶) |
| 121 | 120 | fvmpt2 7027 |
. . . . . . 7
⊢ ((𝑘 ∈ ℕ0
∧ 𝐶 ∈ ℂ)
→ ((𝑘 ∈
ℕ0 ↦ 𝐶)‘𝑘) = 𝐶) |
| 122 | 119, 84, 121 | syl2anc 584 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ((𝑘 ∈ ℕ0
↦ 𝐶)‘𝑘) = 𝐶) |
| 123 | | ovex 7464 |
. . . . . . . . . 10
⊢ ((2
· 𝑘) + 1) ∈
V |
| 124 | 99, 33, 123 | fvmpt 7016 |
. . . . . . . . 9
⊢ (𝑘 ∈ ℕ0
→ ((𝑚 ∈
ℕ0 ↦ ((2 · 𝑚) + 1))‘𝑘) = ((2 · 𝑘) + 1)) |
| 125 | 124 | adantl 481 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ((𝑚 ∈ ℕ0
↦ ((2 · 𝑚) +
1))‘𝑘) = ((2 ·
𝑘) + 1)) |
| 126 | 125 | fveq2d 6910 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘)) = ((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘((2 · 𝑘) + 1))) |
| 127 | | breq2 5147 |
. . . . . . . . 9
⊢ (𝑛 = ((2 · 𝑘) + 1) → (2 ∥ 𝑛 ↔ 2 ∥ ((2 ·
𝑘) + 1))) |
| 128 | 127, 85 | ifbieq2d 4552 |
. . . . . . . 8
⊢ (𝑛 = ((2 · 𝑘) + 1) → if(2 ∥ 𝑛, 0, 𝐵) = if(2 ∥ ((2 · 𝑘) + 1), 0, 𝐶)) |
| 129 | | nn0mulcl 12562 |
. . . . . . . . . 10
⊢ ((2
∈ ℕ0 ∧ 𝑘 ∈ ℕ0) → (2
· 𝑘) ∈
ℕ0) |
| 130 | 6, 129 | sylan 580 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → (2
· 𝑘) ∈
ℕ0) |
| 131 | | nn0p1nn 12565 |
. . . . . . . . 9
⊢ ((2
· 𝑘) ∈
ℕ0 → ((2 · 𝑘) + 1) ∈ ℕ) |
| 132 | 130, 131 | syl 17 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ((2
· 𝑘) + 1) ∈
ℕ) |
| 133 | | 2z 12649 |
. . . . . . . . . . . 12
⊢ 2 ∈
ℤ |
| 134 | | nn0z 12638 |
. . . . . . . . . . . . 13
⊢ (𝑘 ∈ ℕ0
→ 𝑘 ∈
ℤ) |
| 135 | 134 | adantl 481 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 𝑘 ∈
ℤ) |
| 136 | | dvdsmul1 16315 |
. . . . . . . . . . . 12
⊢ ((2
∈ ℤ ∧ 𝑘
∈ ℤ) → 2 ∥ (2 · 𝑘)) |
| 137 | 133, 135,
136 | sylancr 587 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 2 ∥
(2 · 𝑘)) |
| 138 | 130 | nn0zd 12639 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → (2
· 𝑘) ∈
ℤ) |
| 139 | | 2nn 12339 |
. . . . . . . . . . . . 13
⊢ 2 ∈
ℕ |
| 140 | 139 | a1i 11 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 2 ∈
ℕ) |
| 141 | | 1lt2 12437 |
. . . . . . . . . . . . 13
⊢ 1 <
2 |
| 142 | 141 | a1i 11 |
. . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 1 <
2) |
| 143 | | ndvdsp1 16448 |
. . . . . . . . . . . 12
⊢ (((2
· 𝑘) ∈ ℤ
∧ 2 ∈ ℕ ∧ 1 < 2) → (2 ∥ (2 · 𝑘) → ¬ 2 ∥ ((2
· 𝑘) +
1))) |
| 144 | 138, 140,
142, 143 | syl3anc 1373 |
. . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → (2
∥ (2 · 𝑘)
→ ¬ 2 ∥ ((2 · 𝑘) + 1))) |
| 145 | 137, 144 | mpd 15 |
. . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ¬ 2
∥ ((2 · 𝑘) +
1)) |
| 146 | 145 | iffalsed 4536 |
. . . . . . . . 9
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → if(2
∥ ((2 · 𝑘) +
1), 0, 𝐶) = 𝐶) |
| 147 | 146, 84 | eqeltrd 2841 |
. . . . . . . 8
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → if(2
∥ ((2 · 𝑘) +
1), 0, 𝐶) ∈
ℂ) |
| 148 | 93, 128, 132, 147 | fvmptd3 7039 |
. . . . . . 7
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘((2 · 𝑘) + 1)) = if(2 ∥ ((2
· 𝑘) + 1), 0, 𝐶)) |
| 149 | 126, 148,
146 | 3eqtrd 2781 |
. . . . . 6
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘)) = 𝐶) |
| 150 | 122, 149 | eqtr4d 2780 |
. . . . 5
⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → ((𝑘 ∈ ℕ0
↦ 𝐶)‘𝑘) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘))) |
| 151 | 150 | ralrimiva 3146 |
. . . 4
⊢ (𝜑 → ∀𝑘 ∈ ℕ0 ((𝑘 ∈ ℕ0
↦ 𝐶)‘𝑘) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘))) |
| 152 | | nfv 1914 |
. . . . 5
⊢
Ⅎ𝑖((𝑘 ∈ ℕ0
↦ 𝐶)‘𝑘) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘)) |
| 153 | | nffvmpt1 6917 |
. . . . . 6
⊢
Ⅎ𝑘((𝑘 ∈ ℕ0 ↦ 𝐶)‘𝑖) |
| 154 | 153 | nfeq1 2921 |
. . . . 5
⊢
Ⅎ𝑘((𝑘 ∈ ℕ0
↦ 𝐶)‘𝑖) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑖)) |
| 155 | | fveq2 6906 |
. . . . . 6
⊢ (𝑘 = 𝑖 → ((𝑘 ∈ ℕ0 ↦ 𝐶)‘𝑘) = ((𝑘 ∈ ℕ0 ↦ 𝐶)‘𝑖)) |
| 156 | | 2fveq3 6911 |
. . . . . 6
⊢ (𝑘 = 𝑖 → ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘)) = ((𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑖))) |
| 157 | 155, 156 | eqeq12d 2753 |
. . . . 5
⊢ (𝑘 = 𝑖 → (((𝑘 ∈ ℕ0 ↦ 𝐶)‘𝑘) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘)) ↔
((𝑘 ∈
ℕ0 ↦ 𝐶)‘𝑖) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑖)))) |
| 158 | 152, 154,
157 | cbvralw 3306 |
. . . 4
⊢
(∀𝑘 ∈
ℕ0 ((𝑘
∈ ℕ0 ↦ 𝐶)‘𝑘) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑘)) ↔
∀𝑖 ∈
ℕ0 ((𝑘
∈ ℕ0 ↦ 𝐶)‘𝑖) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑖))) |
| 159 | 151, 158 | sylib 218 |
. . 3
⊢ (𝜑 → ∀𝑖 ∈ ℕ0 ((𝑘 ∈ ℕ0
↦ 𝐶)‘𝑖) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑖))) |
| 160 | 159 | r19.21bi 3251 |
. 2
⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((𝑘 ∈ ℕ0
↦ 𝐶)‘𝑖) = ((𝑛 ∈ ℕ ↦ if(2 ∥ 𝑛, 0, 𝐵))‘((𝑚 ∈ ℕ0 ↦ ((2
· 𝑚) +
1))‘𝑖))) |
| 161 | 1, 2, 3, 4, 11, 43, 116, 118, 160 | isercoll2 15705 |
1
⊢ (𝜑 → (seq0( + , (𝑘 ∈ ℕ0
↦ 𝐶)) ⇝ 𝐴 ↔ seq1( + , (𝑛 ∈ ℕ ↦ if(2
∥ 𝑛, 0, 𝐵))) ⇝ 𝐴)) |