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| Mirrors > Home > MPE Home > Th. List > Mathboxes > eulerpartleme | Structured version Visualization version GIF version | ||
| Description: Lemma for eulerpart 34402. (Contributed by Mario Carneiro, 26-Jan-2015.) |
| Ref | Expression |
|---|---|
| eulerpart.p | ⊢ 𝑃 = {𝑓 ∈ (ℕ0 ↑m ℕ) ∣ ((◡𝑓 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝑓‘𝑘) · 𝑘) = 𝑁)} |
| Ref | Expression |
|---|---|
| eulerpartleme | ⊢ (𝐴 ∈ 𝑃 ↔ (𝐴:ℕ⟶ℕ0 ∧ (◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nn0ex 12393 | . . . 4 ⊢ ℕ0 ∈ V | |
| 2 | nnex 12137 | . . . 4 ⊢ ℕ ∈ V | |
| 3 | 1, 2 | elmap 8801 | . . 3 ⊢ (𝐴 ∈ (ℕ0 ↑m ℕ) ↔ 𝐴:ℕ⟶ℕ0) |
| 4 | 3 | anbi1i 624 | . 2 ⊢ ((𝐴 ∈ (ℕ0 ↑m ℕ) ∧ ((◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁)) ↔ (𝐴:ℕ⟶ℕ0 ∧ ((◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁))) |
| 5 | cnveq 5818 | . . . . . 6 ⊢ (𝑓 = 𝐴 → ◡𝑓 = ◡𝐴) | |
| 6 | 5 | imaeq1d 6013 | . . . . 5 ⊢ (𝑓 = 𝐴 → (◡𝑓 “ ℕ) = (◡𝐴 “ ℕ)) |
| 7 | 6 | eleq1d 2816 | . . . 4 ⊢ (𝑓 = 𝐴 → ((◡𝑓 “ ℕ) ∈ Fin ↔ (◡𝐴 “ ℕ) ∈ Fin)) |
| 8 | fveq1 6827 | . . . . . . 7 ⊢ (𝑓 = 𝐴 → (𝑓‘𝑘) = (𝐴‘𝑘)) | |
| 9 | 8 | oveq1d 7367 | . . . . . 6 ⊢ (𝑓 = 𝐴 → ((𝑓‘𝑘) · 𝑘) = ((𝐴‘𝑘) · 𝑘)) |
| 10 | 9 | sumeq2sdv 15616 | . . . . 5 ⊢ (𝑓 = 𝐴 → Σ𝑘 ∈ ℕ ((𝑓‘𝑘) · 𝑘) = Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘)) |
| 11 | 10 | eqeq1d 2733 | . . . 4 ⊢ (𝑓 = 𝐴 → (Σ𝑘 ∈ ℕ ((𝑓‘𝑘) · 𝑘) = 𝑁 ↔ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁)) |
| 12 | 7, 11 | anbi12d 632 | . . 3 ⊢ (𝑓 = 𝐴 → (((◡𝑓 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝑓‘𝑘) · 𝑘) = 𝑁) ↔ ((◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁))) |
| 13 | eulerpart.p | . . 3 ⊢ 𝑃 = {𝑓 ∈ (ℕ0 ↑m ℕ) ∣ ((◡𝑓 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝑓‘𝑘) · 𝑘) = 𝑁)} | |
| 14 | 12, 13 | elrab2 3645 | . 2 ⊢ (𝐴 ∈ 𝑃 ↔ (𝐴 ∈ (ℕ0 ↑m ℕ) ∧ ((◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁))) |
| 15 | 3anass 1094 | . 2 ⊢ ((𝐴:ℕ⟶ℕ0 ∧ (◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁) ↔ (𝐴:ℕ⟶ℕ0 ∧ ((◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁))) | |
| 16 | 4, 14, 15 | 3bitr4i 303 | 1 ⊢ (𝐴 ∈ 𝑃 ↔ (𝐴:ℕ⟶ℕ0 ∧ (◡𝐴 “ ℕ) ∈ Fin ∧ Σ𝑘 ∈ ℕ ((𝐴‘𝑘) · 𝑘) = 𝑁)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 ∧ w3a 1086 = wceq 1541 ∈ wcel 2111 {crab 3395 ◡ccnv 5618 “ cima 5622 ⟶wf 6483 ‘cfv 6487 (class class class)co 7352 ↑m cmap 8756 Fincfn 8875 · cmul 11017 ℕcn 12131 ℕ0cn0 12387 Σcsu 15599 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5236 ax-nul 5246 ax-pow 5305 ax-pr 5372 ax-un 7674 ax-cnex 11068 ax-1cn 11070 ax-addcl 11072 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-ral 3048 df-rex 3057 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3737 df-csb 3846 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-pss 3917 df-nul 4283 df-if 4475 df-pw 4551 df-sn 4576 df-pr 4578 df-op 4582 df-uni 4859 df-iun 4943 df-br 5094 df-opab 5156 df-mpt 5175 df-tr 5201 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-ov 7355 df-oprab 7356 df-mpo 7357 df-om 7803 df-2nd 7928 df-frecs 8217 df-wrecs 8248 df-recs 8297 df-rdg 8335 df-map 8758 df-nn 12132 df-n0 12388 df-seq 13915 df-sum 15600 |
| This theorem is referenced by: eulerpartlemv 34384 eulerpartlemd 34386 eulerpartlemb 34388 eulerpartlemn 34401 |
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