Proof of Theorem pcbc
| Step | Hyp | Ref
| Expression |
| 1 | | simp3 1001 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝑃 ∈ ℙ) |
| 2 | | nnnn0 9273 |
. . . . . 6
⊢ (𝑁 ∈ ℕ → 𝑁 ∈
ℕ0) |
| 3 | 2 | 3ad2ant1 1020 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝑁 ∈
ℕ0) |
| 4 | 3 | faccld 10845 |
. . . 4
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘𝑁) ∈
ℕ) |
| 5 | 4 | nnzd 9464 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘𝑁) ∈
ℤ) |
| 6 | 4 | nnne0d 9052 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘𝑁) ≠ 0) |
| 7 | | fznn0sub 10149 |
. . . . . 6
⊢ (𝐾 ∈ (0...𝑁) → (𝑁 − 𝐾) ∈
ℕ0) |
| 8 | 7 | 3ad2ant2 1021 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑁 − 𝐾) ∈
ℕ0) |
| 9 | 8 | faccld 10845 |
. . . 4
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘(𝑁 − 𝐾)) ∈ ℕ) |
| 10 | | elfznn0 10206 |
. . . . . 6
⊢ (𝐾 ∈ (0...𝑁) → 𝐾 ∈
ℕ0) |
| 11 | 10 | 3ad2ant2 1021 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝐾 ∈
ℕ0) |
| 12 | 11 | faccld 10845 |
. . . 4
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘𝐾) ∈
ℕ) |
| 13 | 9, 12 | nnmulcld 9056 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → ((!‘(𝑁 − 𝐾)) · (!‘𝐾)) ∈ ℕ) |
| 14 | | pcdiv 12496 |
. . 3
⊢ ((𝑃 ∈ ℙ ∧
((!‘𝑁) ∈ ℤ
∧ (!‘𝑁) ≠ 0)
∧ ((!‘(𝑁 −
𝐾)) · (!‘𝐾)) ∈ ℕ) → (𝑃 pCnt ((!‘𝑁) / ((!‘(𝑁 − 𝐾)) · (!‘𝐾)))) = ((𝑃 pCnt (!‘𝑁)) − (𝑃 pCnt ((!‘(𝑁 − 𝐾)) · (!‘𝐾))))) |
| 15 | 1, 5, 6, 13, 14 | syl121anc 1254 |
. 2
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt ((!‘𝑁) / ((!‘(𝑁 − 𝐾)) · (!‘𝐾)))) = ((𝑃 pCnt (!‘𝑁)) − (𝑃 pCnt ((!‘(𝑁 − 𝐾)) · (!‘𝐾))))) |
| 16 | | bcval2 10859 |
. . . 4
⊢ (𝐾 ∈ (0...𝑁) → (𝑁C𝐾) = ((!‘𝑁) / ((!‘(𝑁 − 𝐾)) · (!‘𝐾)))) |
| 17 | 16 | 3ad2ant2 1021 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑁C𝐾) = ((!‘𝑁) / ((!‘(𝑁 − 𝐾)) · (!‘𝐾)))) |
| 18 | 17 | oveq2d 5941 |
. 2
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (𝑁C𝐾)) = (𝑃 pCnt ((!‘𝑁) / ((!‘(𝑁 − 𝐾)) · (!‘𝐾))))) |
| 19 | | 1zzd 9370 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 1 ∈
ℤ) |
| 20 | 3 | nn0zd 9463 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝑁 ∈ ℤ) |
| 21 | 19, 20 | fzfigd 10540 |
. . . 4
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (1...𝑁) ∈ Fin) |
| 22 | 20 | adantr 276 |
. . . . . . 7
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → 𝑁 ∈ ℤ) |
| 23 | | simpl3 1004 |
. . . . . . . . 9
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → 𝑃 ∈ ℙ) |
| 24 | | prmnn 12303 |
. . . . . . . . 9
⊢ (𝑃 ∈ ℙ → 𝑃 ∈
ℕ) |
| 25 | 23, 24 | syl 14 |
. . . . . . . 8
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → 𝑃 ∈ ℕ) |
| 26 | | elfznn 10146 |
. . . . . . . . . 10
⊢ (𝑘 ∈ (1...𝑁) → 𝑘 ∈ ℕ) |
| 27 | 26 | nnnn0d 9319 |
. . . . . . . . 9
⊢ (𝑘 ∈ (1...𝑁) → 𝑘 ∈ ℕ0) |
| 28 | 27 | adantl 277 |
. . . . . . . 8
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → 𝑘 ∈ ℕ0) |
| 29 | 25, 28 | nnexpcld 10804 |
. . . . . . 7
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (𝑃↑𝑘) ∈ ℕ) |
| 30 | | znq 9715 |
. . . . . . 7
⊢ ((𝑁 ∈ ℤ ∧ (𝑃↑𝑘) ∈ ℕ) → (𝑁 / (𝑃↑𝑘)) ∈ ℚ) |
| 31 | 22, 29, 30 | syl2anc 411 |
. . . . . 6
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (𝑁 / (𝑃↑𝑘)) ∈ ℚ) |
| 32 | 31 | flqcld 10384 |
. . . . 5
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (⌊‘(𝑁 / (𝑃↑𝑘))) ∈ ℤ) |
| 33 | 32 | zcnd 9466 |
. . . 4
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (⌊‘(𝑁 / (𝑃↑𝑘))) ∈ ℂ) |
| 34 | | simpl2 1003 |
. . . . . . . . . 10
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → 𝐾 ∈ (0...𝑁)) |
| 35 | 10 | nn0zd 9463 |
. . . . . . . . . 10
⊢ (𝐾 ∈ (0...𝑁) → 𝐾 ∈ ℤ) |
| 36 | 34, 35 | syl 14 |
. . . . . . . . 9
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → 𝐾 ∈ ℤ) |
| 37 | 22, 36 | zsubcld 9470 |
. . . . . . . 8
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (𝑁 − 𝐾) ∈ ℤ) |
| 38 | | znq 9715 |
. . . . . . . 8
⊢ (((𝑁 − 𝐾) ∈ ℤ ∧ (𝑃↑𝑘) ∈ ℕ) → ((𝑁 − 𝐾) / (𝑃↑𝑘)) ∈ ℚ) |
| 39 | 37, 29, 38 | syl2anc 411 |
. . . . . . 7
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → ((𝑁 − 𝐾) / (𝑃↑𝑘)) ∈ ℚ) |
| 40 | 39 | flqcld 10384 |
. . . . . 6
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) ∈ ℤ) |
| 41 | 40 | zcnd 9466 |
. . . . 5
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) ∈ ℂ) |
| 42 | | znq 9715 |
. . . . . . . 8
⊢ ((𝐾 ∈ ℤ ∧ (𝑃↑𝑘) ∈ ℕ) → (𝐾 / (𝑃↑𝑘)) ∈ ℚ) |
| 43 | 36, 29, 42 | syl2anc 411 |
. . . . . . 7
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (𝐾 / (𝑃↑𝑘)) ∈ ℚ) |
| 44 | 43 | flqcld 10384 |
. . . . . 6
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (⌊‘(𝐾 / (𝑃↑𝑘))) ∈ ℤ) |
| 45 | 44 | zcnd 9466 |
. . . . 5
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → (⌊‘(𝐾 / (𝑃↑𝑘))) ∈ ℂ) |
| 46 | 41, 45 | addcld 8063 |
. . . 4
⊢ (((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) ∧ 𝑘 ∈ (1...𝑁)) → ((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘)))) ∈ ℂ) |
| 47 | 21, 33, 46 | fsumsub 11634 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → Σ𝑘 ∈ (1...𝑁)((⌊‘(𝑁 / (𝑃↑𝑘))) − ((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘))))) = (Σ𝑘 ∈ (1...𝑁)(⌊‘(𝑁 / (𝑃↑𝑘))) − Σ𝑘 ∈ (1...𝑁)((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘)))))) |
| 48 | | uzid 9632 |
. . . . . 6
⊢ (𝑁 ∈ ℤ → 𝑁 ∈
(ℤ≥‘𝑁)) |
| 49 | 20, 48 | syl 14 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝑁 ∈ (ℤ≥‘𝑁)) |
| 50 | | pcfac 12544 |
. . . . 5
⊢ ((𝑁 ∈ ℕ0
∧ 𝑁 ∈
(ℤ≥‘𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (!‘𝑁)) = Σ𝑘 ∈ (1...𝑁)(⌊‘(𝑁 / (𝑃↑𝑘)))) |
| 51 | 3, 49, 1, 50 | syl3anc 1249 |
. . . 4
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (!‘𝑁)) = Σ𝑘 ∈ (1...𝑁)(⌊‘(𝑁 / (𝑃↑𝑘)))) |
| 52 | 11 | nn0ge0d 9322 |
. . . . . . . . 9
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 0 ≤ 𝐾) |
| 53 | | nnre 9014 |
. . . . . . . . . . 11
⊢ (𝑁 ∈ ℕ → 𝑁 ∈
ℝ) |
| 54 | 53 | 3ad2ant1 1020 |
. . . . . . . . . 10
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝑁 ∈ ℝ) |
| 55 | 11 | nn0red 9320 |
. . . . . . . . . 10
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝐾 ∈ ℝ) |
| 56 | 54, 55 | subge02d 8581 |
. . . . . . . . 9
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (0 ≤ 𝐾 ↔ (𝑁 − 𝐾) ≤ 𝑁)) |
| 57 | 52, 56 | mpbid 147 |
. . . . . . . 8
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑁 − 𝐾) ≤ 𝑁) |
| 58 | 11 | nn0zd 9463 |
. . . . . . . . . 10
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝐾 ∈ ℤ) |
| 59 | 20, 58 | zsubcld 9470 |
. . . . . . . . 9
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑁 − 𝐾) ∈ ℤ) |
| 60 | | eluz 9631 |
. . . . . . . . 9
⊢ (((𝑁 − 𝐾) ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑁 ∈ (ℤ≥‘(𝑁 − 𝐾)) ↔ (𝑁 − 𝐾) ≤ 𝑁)) |
| 61 | 59, 20, 60 | syl2anc 411 |
. . . . . . . 8
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑁 ∈ (ℤ≥‘(𝑁 − 𝐾)) ↔ (𝑁 − 𝐾) ≤ 𝑁)) |
| 62 | 57, 61 | mpbird 167 |
. . . . . . 7
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝑁 ∈ (ℤ≥‘(𝑁 − 𝐾))) |
| 63 | | pcfac 12544 |
. . . . . . 7
⊢ (((𝑁 − 𝐾) ∈ ℕ0 ∧ 𝑁 ∈
(ℤ≥‘(𝑁 − 𝐾)) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (!‘(𝑁 − 𝐾))) = Σ𝑘 ∈ (1...𝑁)(⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘)))) |
| 64 | 8, 62, 1, 63 | syl3anc 1249 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (!‘(𝑁 − 𝐾))) = Σ𝑘 ∈ (1...𝑁)(⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘)))) |
| 65 | | elfzuz3 10114 |
. . . . . . . 8
⊢ (𝐾 ∈ (0...𝑁) → 𝑁 ∈ (ℤ≥‘𝐾)) |
| 66 | 65 | 3ad2ant2 1021 |
. . . . . . 7
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → 𝑁 ∈ (ℤ≥‘𝐾)) |
| 67 | | pcfac 12544 |
. . . . . . 7
⊢ ((𝐾 ∈ ℕ0
∧ 𝑁 ∈
(ℤ≥‘𝐾) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (!‘𝐾)) = Σ𝑘 ∈ (1...𝑁)(⌊‘(𝐾 / (𝑃↑𝑘)))) |
| 68 | 11, 66, 1, 67 | syl3anc 1249 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (!‘𝐾)) = Σ𝑘 ∈ (1...𝑁)(⌊‘(𝐾 / (𝑃↑𝑘)))) |
| 69 | 64, 68 | oveq12d 5943 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → ((𝑃 pCnt (!‘(𝑁 − 𝐾))) + (𝑃 pCnt (!‘𝐾))) = (Σ𝑘 ∈ (1...𝑁)(⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + Σ𝑘 ∈ (1...𝑁)(⌊‘(𝐾 / (𝑃↑𝑘))))) |
| 70 | 9 | nnzd 9464 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘(𝑁 − 𝐾)) ∈ ℤ) |
| 71 | 9 | nnne0d 9052 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘(𝑁 − 𝐾)) ≠ 0) |
| 72 | 12 | nnzd 9464 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘𝐾) ∈
ℤ) |
| 73 | 12 | nnne0d 9052 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (!‘𝐾) ≠ 0) |
| 74 | | pcmul 12495 |
. . . . . 6
⊢ ((𝑃 ∈ ℙ ∧
((!‘(𝑁 − 𝐾)) ∈ ℤ ∧
(!‘(𝑁 − 𝐾)) ≠ 0) ∧ ((!‘𝐾) ∈ ℤ ∧
(!‘𝐾) ≠ 0)) →
(𝑃 pCnt ((!‘(𝑁 − 𝐾)) · (!‘𝐾))) = ((𝑃 pCnt (!‘(𝑁 − 𝐾))) + (𝑃 pCnt (!‘𝐾)))) |
| 75 | 1, 70, 71, 72, 73, 74 | syl122anc 1258 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt ((!‘(𝑁 − 𝐾)) · (!‘𝐾))) = ((𝑃 pCnt (!‘(𝑁 − 𝐾))) + (𝑃 pCnt (!‘𝐾)))) |
| 76 | 21, 41, 45 | fsumadd 11588 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → Σ𝑘 ∈ (1...𝑁)((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘)))) = (Σ𝑘 ∈ (1...𝑁)(⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + Σ𝑘 ∈ (1...𝑁)(⌊‘(𝐾 / (𝑃↑𝑘))))) |
| 77 | 69, 75, 76 | 3eqtr4d 2239 |
. . . 4
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt ((!‘(𝑁 − 𝐾)) · (!‘𝐾))) = Σ𝑘 ∈ (1...𝑁)((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘))))) |
| 78 | 51, 77 | oveq12d 5943 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → ((𝑃 pCnt (!‘𝑁)) − (𝑃 pCnt ((!‘(𝑁 − 𝐾)) · (!‘𝐾)))) = (Σ𝑘 ∈ (1...𝑁)(⌊‘(𝑁 / (𝑃↑𝑘))) − Σ𝑘 ∈ (1...𝑁)((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘)))))) |
| 79 | 47, 78 | eqtr4d 2232 |
. 2
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → Σ𝑘 ∈ (1...𝑁)((⌊‘(𝑁 / (𝑃↑𝑘))) − ((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘))))) = ((𝑃 pCnt (!‘𝑁)) − (𝑃 pCnt ((!‘(𝑁 − 𝐾)) · (!‘𝐾))))) |
| 80 | 15, 18, 79 | 3eqtr4d 2239 |
1
⊢ ((𝑁 ∈ ℕ ∧ 𝐾 ∈ (0...𝑁) ∧ 𝑃 ∈ ℙ) → (𝑃 pCnt (𝑁C𝐾)) = Σ𝑘 ∈ (1...𝑁)((⌊‘(𝑁 / (𝑃↑𝑘))) − ((⌊‘((𝑁 − 𝐾) / (𝑃↑𝑘))) + (⌊‘(𝐾 / (𝑃↑𝑘)))))) |