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| Mirrors > Home > MPE Home > Th. List > Mathboxes > binomcxplemradcnv | Structured version Visualization version GIF version | ||
| Description: Lemma for binomcxp 44635. By binomcxplemfrat 44629 and radcnvrat 44592 the radius of convergence of power series Σ𝑘 ∈ ℕ0((𝐹‘𝑘) · (𝑏↑𝑘)) is one. (Contributed by Steve Rodriguez, 22-Apr-2020.) |
| Ref | Expression |
|---|---|
| binomcxp.a | ⊢ (𝜑 → 𝐴 ∈ ℝ+) |
| binomcxp.b | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| binomcxp.lt | ⊢ (𝜑 → (abs‘𝐵) < (abs‘𝐴)) |
| binomcxp.c | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| binomcxplem.f | ⊢ 𝐹 = (𝑗 ∈ ℕ0 ↦ (𝐶C𝑐𝑗)) |
| binomcxplem.s | ⊢ 𝑆 = (𝑏 ∈ ℂ ↦ (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘)))) |
| binomcxplem.r | ⊢ 𝑅 = sup({𝑟 ∈ ℝ ∣ seq0( + , (𝑆‘𝑟)) ∈ dom ⇝ }, ℝ*, < ) |
| Ref | Expression |
|---|---|
| binomcxplemradcnv | ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 𝑅 = 1) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | binomcxplem.s | . . . 4 ⊢ 𝑆 = (𝑏 ∈ ℂ ↦ (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘)))) | |
| 2 | simpl 482 | . . . . . . . . 9 ⊢ ((𝑏 = 𝑥 ∧ 𝑘 ∈ ℕ0) → 𝑏 = 𝑥) | |
| 3 | 2 | oveq1d 7373 | . . . . . . . 8 ⊢ ((𝑏 = 𝑥 ∧ 𝑘 ∈ ℕ0) → (𝑏↑𝑘) = (𝑥↑𝑘)) |
| 4 | 3 | oveq2d 7374 | . . . . . . 7 ⊢ ((𝑏 = 𝑥 ∧ 𝑘 ∈ ℕ0) → ((𝐹‘𝑘) · (𝑏↑𝑘)) = ((𝐹‘𝑘) · (𝑥↑𝑘))) |
| 5 | 4 | mpteq2dva 5190 | . . . . . 6 ⊢ (𝑏 = 𝑥 → (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘))) = (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑥↑𝑘)))) |
| 6 | fveq2 6833 | . . . . . . . 8 ⊢ (𝑘 = 𝑦 → (𝐹‘𝑘) = (𝐹‘𝑦)) | |
| 7 | oveq2 7366 | . . . . . . . 8 ⊢ (𝑘 = 𝑦 → (𝑥↑𝑘) = (𝑥↑𝑦)) | |
| 8 | 6, 7 | oveq12d 7376 | . . . . . . 7 ⊢ (𝑘 = 𝑦 → ((𝐹‘𝑘) · (𝑥↑𝑘)) = ((𝐹‘𝑦) · (𝑥↑𝑦))) |
| 9 | 8 | cbvmptv 5201 | . . . . . 6 ⊢ (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑥↑𝑘))) = (𝑦 ∈ ℕ0 ↦ ((𝐹‘𝑦) · (𝑥↑𝑦))) |
| 10 | 5, 9 | eqtrdi 2786 | . . . . 5 ⊢ (𝑏 = 𝑥 → (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘))) = (𝑦 ∈ ℕ0 ↦ ((𝐹‘𝑦) · (𝑥↑𝑦)))) |
| 11 | 10 | cbvmptv 5201 | . . . 4 ⊢ (𝑏 ∈ ℂ ↦ (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘)))) = (𝑥 ∈ ℂ ↦ (𝑦 ∈ ℕ0 ↦ ((𝐹‘𝑦) · (𝑥↑𝑦)))) |
| 12 | 1, 11 | eqtri 2758 | . . 3 ⊢ 𝑆 = (𝑥 ∈ ℂ ↦ (𝑦 ∈ ℕ0 ↦ ((𝐹‘𝑦) · (𝑥↑𝑦)))) |
| 13 | binomcxp.c | . . . . . 6 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 14 | 13 | ad2antrr 727 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑗 ∈ ℕ0) → 𝐶 ∈ ℂ) |
| 15 | simpr 484 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑗 ∈ ℕ0) → 𝑗 ∈ ℕ0) | |
| 16 | 14, 15 | bcccl 44617 | . . . 4 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑗 ∈ ℕ0) → (𝐶C𝑐𝑗) ∈ ℂ) |
| 17 | binomcxplem.f | . . . 4 ⊢ 𝐹 = (𝑗 ∈ ℕ0 ↦ (𝐶C𝑐𝑗)) | |
| 18 | 16, 17 | fmptd 7059 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 𝐹:ℕ0⟶ℂ) |
| 19 | binomcxplem.r | . . 3 ⊢ 𝑅 = sup({𝑟 ∈ ℝ ∣ seq0( + , (𝑆‘𝑟)) ∈ dom ⇝ }, ℝ*, < ) | |
| 20 | fvoveq1 7381 | . . . . . 6 ⊢ (𝑘 = 𝑖 → (𝐹‘(𝑘 + 1)) = (𝐹‘(𝑖 + 1))) | |
| 21 | fveq2 6833 | . . . . . 6 ⊢ (𝑘 = 𝑖 → (𝐹‘𝑘) = (𝐹‘𝑖)) | |
| 22 | 20, 21 | oveq12d 7376 | . . . . 5 ⊢ (𝑘 = 𝑖 → ((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘)) = ((𝐹‘(𝑖 + 1)) / (𝐹‘𝑖))) |
| 23 | 22 | fveq2d 6837 | . . . 4 ⊢ (𝑘 = 𝑖 → (abs‘((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘))) = (abs‘((𝐹‘(𝑖 + 1)) / (𝐹‘𝑖)))) |
| 24 | 23 | cbvmptv 5201 | . . 3 ⊢ (𝑘 ∈ ℕ0 ↦ (abs‘((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘)))) = (𝑖 ∈ ℕ0 ↦ (abs‘((𝐹‘(𝑖 + 1)) / (𝐹‘𝑖)))) |
| 25 | nn0uz 12791 | . . 3 ⊢ ℕ0 = (ℤ≥‘0) | |
| 26 | 0nn0 12418 | . . . 4 ⊢ 0 ∈ ℕ0 | |
| 27 | 26 | a1i 11 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 0 ∈ ℕ0) |
| 28 | 17 | a1i 11 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → 𝐹 = (𝑗 ∈ ℕ0 ↦ (𝐶C𝑐𝑗))) |
| 29 | simpr 484 | . . . . . 6 ⊢ ((((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) ∧ 𝑗 = 𝑖) → 𝑗 = 𝑖) | |
| 30 | 29 | oveq2d 7374 | . . . . 5 ⊢ ((((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) ∧ 𝑗 = 𝑖) → (𝐶C𝑐𝑗) = (𝐶C𝑐𝑖)) |
| 31 | simpr 484 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → 𝑖 ∈ ℕ0) | |
| 32 | ovexd 7393 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → (𝐶C𝑐𝑖) ∈ V) | |
| 33 | 28, 30, 31, 32 | fvmptd 6948 | . . . 4 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → (𝐹‘𝑖) = (𝐶C𝑐𝑖)) |
| 34 | elfznn0 13538 | . . . . . . 7 ⊢ (𝐶 ∈ (0...(𝑖 − 1)) → 𝐶 ∈ ℕ0) | |
| 35 | 34 | con3i 154 | . . . . . 6 ⊢ (¬ 𝐶 ∈ ℕ0 → ¬ 𝐶 ∈ (0...(𝑖 − 1))) |
| 36 | 35 | ad2antlr 728 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → ¬ 𝐶 ∈ (0...(𝑖 − 1))) |
| 37 | 13 | adantr 480 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝐶 ∈ ℂ) |
| 38 | simpr 484 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → 𝑖 ∈ ℕ0) | |
| 39 | 37, 38 | bcc0 44618 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((𝐶C𝑐𝑖) = 0 ↔ 𝐶 ∈ (0...(𝑖 − 1)))) |
| 40 | 39 | necon3abid 2967 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((𝐶C𝑐𝑖) ≠ 0 ↔ ¬ 𝐶 ∈ (0...(𝑖 − 1)))) |
| 41 | 40 | adantlr 716 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → ((𝐶C𝑐𝑖) ≠ 0 ↔ ¬ 𝐶 ∈ (0...(𝑖 − 1)))) |
| 42 | 36, 41 | mpbird 257 | . . . 4 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → (𝐶C𝑐𝑖) ≠ 0) |
| 43 | 33, 42 | eqnetrd 2998 | . . 3 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → (𝐹‘𝑖) ≠ 0) |
| 44 | binomcxp.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℝ+) | |
| 45 | binomcxp.b | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
| 46 | binomcxp.lt | . . . 4 ⊢ (𝜑 → (abs‘𝐵) < (abs‘𝐴)) | |
| 47 | 44, 45, 46, 13, 17 | binomcxplemfrat 44629 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → (𝑘 ∈ ℕ0 ↦ (abs‘((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘)))) ⇝ 1) |
| 48 | ax-1ne0 11097 | . . . 4 ⊢ 1 ≠ 0 | |
| 49 | 48 | a1i 11 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 1 ≠ 0) |
| 50 | 12, 18, 19, 24, 25, 27, 43, 47, 49 | radcnvrat 44592 | . 2 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 𝑅 = (1 / 1)) |
| 51 | 1div1e1 11834 | . 2 ⊢ (1 / 1) = 1 | |
| 52 | 50, 51 | eqtrdi 2786 | 1 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 𝑅 = 1) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ≠ wne 2931 {crab 3398 Vcvv 3439 class class class wbr 5097 ↦ cmpt 5178 dom cdm 5623 ‘cfv 6491 (class class class)co 7358 supcsup 9345 ℂcc 11026 ℝcr 11027 0cc0 11028 1c1 11029 + caddc 11031 · cmul 11033 ℝ*cxr 11167 < clt 11168 − cmin 11366 / cdiv 11796 ℕ0cn0 12403 ℝ+crp 12907 ...cfz 13425 seqcseq 13926 ↑cexp 13986 abscabs 15159 ⇝ cli 15409 C𝑐cbcc 44614 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2183 ax-ext 2707 ax-rep 5223 ax-sep 5240 ax-nul 5250 ax-pow 5309 ax-pr 5376 ax-un 7680 ax-inf2 9552 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 ax-pre-sup 11106 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-rmo 3349 df-reu 3350 df-rab 3399 df-v 3441 df-sbc 3740 df-csb 3849 df-dif 3903 df-un 3905 df-in 3907 df-ss 3917 df-pss 3920 df-nul 4285 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-int 4902 df-iun 4947 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-se 5577 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6258 df-ord 6319 df-on 6320 df-lim 6321 df-suc 6322 df-iota 6447 df-fun 6493 df-fn 6494 df-f 6495 df-f1 6496 df-fo 6497 df-f1o 6498 df-fv 6499 df-isom 6500 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-of 7622 df-om 7809 df-1st 7933 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-1o 8397 df-er 8635 df-pm 8768 df-en 8886 df-dom 8887 df-sdom 8888 df-fin 8889 df-sup 9347 df-inf 9348 df-oi 9417 df-card 9853 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-div 11797 df-nn 12148 df-2 12210 df-3 12211 df-n0 12404 df-z 12491 df-uz 12754 df-q 12864 df-rp 12908 df-ioo 13267 df-ico 13269 df-fz 13426 df-fzo 13573 df-fl 13714 df-seq 13927 df-exp 13987 df-fac 14199 df-hash 14256 df-shft 14992 df-cj 15024 df-re 15025 df-im 15026 df-sqrt 15160 df-abs 15161 df-limsup 15396 df-clim 15413 df-rlim 15414 df-sum 15612 df-prod 15829 df-fallfac 15932 df-bcc 44615 |
| This theorem is referenced by: binomcxplemdvbinom 44631 binomcxplemnotnn0 44634 |
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