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| Mirrors > Home > MPE Home > Th. List > Mathboxes > binomcxplemradcnv | Structured version Visualization version GIF version | ||
| Description: Lemma for binomcxp 44676. By binomcxplemfrat 44670 and radcnvrat 44633 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 7376 | . . . . . . . 8 ⊢ ((𝑏 = 𝑥 ∧ 𝑘 ∈ ℕ0) → (𝑏↑𝑘) = (𝑥↑𝑘)) |
| 4 | 3 | oveq2d 7377 | . . . . . . 7 ⊢ ((𝑏 = 𝑥 ∧ 𝑘 ∈ ℕ0) → ((𝐹‘𝑘) · (𝑏↑𝑘)) = ((𝐹‘𝑘) · (𝑥↑𝑘))) |
| 5 | 4 | mpteq2dva 5192 | . . . . . 6 ⊢ (𝑏 = 𝑥 → (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘))) = (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑥↑𝑘)))) |
| 6 | fveq2 6835 | . . . . . . . 8 ⊢ (𝑘 = 𝑦 → (𝐹‘𝑘) = (𝐹‘𝑦)) | |
| 7 | oveq2 7369 | . . . . . . . 8 ⊢ (𝑘 = 𝑦 → (𝑥↑𝑘) = (𝑥↑𝑦)) | |
| 8 | 6, 7 | oveq12d 7379 | . . . . . . 7 ⊢ (𝑘 = 𝑦 → ((𝐹‘𝑘) · (𝑥↑𝑘)) = ((𝐹‘𝑦) · (𝑥↑𝑦))) |
| 9 | 8 | cbvmptv 5203 | . . . . . 6 ⊢ (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑥↑𝑘))) = (𝑦 ∈ ℕ0 ↦ ((𝐹‘𝑦) · (𝑥↑𝑦))) |
| 10 | 5, 9 | eqtrdi 2788 | . . . . 5 ⊢ (𝑏 = 𝑥 → (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘))) = (𝑦 ∈ ℕ0 ↦ ((𝐹‘𝑦) · (𝑥↑𝑦)))) |
| 11 | 10 | cbvmptv 5203 | . . . 4 ⊢ (𝑏 ∈ ℂ ↦ (𝑘 ∈ ℕ0 ↦ ((𝐹‘𝑘) · (𝑏↑𝑘)))) = (𝑥 ∈ ℂ ↦ (𝑦 ∈ ℕ0 ↦ ((𝐹‘𝑦) · (𝑥↑𝑦)))) |
| 12 | 1, 11 | eqtri 2760 | . . 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 44658 | . . . 4 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑗 ∈ ℕ0) → (𝐶C𝑐𝑗) ∈ ℂ) |
| 17 | binomcxplem.f | . . . 4 ⊢ 𝐹 = (𝑗 ∈ ℕ0 ↦ (𝐶C𝑐𝑗)) | |
| 18 | 16, 17 | fmptd 7061 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 𝐹:ℕ0⟶ℂ) |
| 19 | binomcxplem.r | . . 3 ⊢ 𝑅 = sup({𝑟 ∈ ℝ ∣ seq0( + , (𝑆‘𝑟)) ∈ dom ⇝ }, ℝ*, < ) | |
| 20 | fvoveq1 7384 | . . . . . 6 ⊢ (𝑘 = 𝑖 → (𝐹‘(𝑘 + 1)) = (𝐹‘(𝑖 + 1))) | |
| 21 | fveq2 6835 | . . . . . 6 ⊢ (𝑘 = 𝑖 → (𝐹‘𝑘) = (𝐹‘𝑖)) | |
| 22 | 20, 21 | oveq12d 7379 | . . . . 5 ⊢ (𝑘 = 𝑖 → ((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘)) = ((𝐹‘(𝑖 + 1)) / (𝐹‘𝑖))) |
| 23 | 22 | fveq2d 6839 | . . . 4 ⊢ (𝑘 = 𝑖 → (abs‘((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘))) = (abs‘((𝐹‘(𝑖 + 1)) / (𝐹‘𝑖)))) |
| 24 | 23 | cbvmptv 5203 | . . 3 ⊢ (𝑘 ∈ ℕ0 ↦ (abs‘((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘)))) = (𝑖 ∈ ℕ0 ↦ (abs‘((𝐹‘(𝑖 + 1)) / (𝐹‘𝑖)))) |
| 25 | nn0uz 12794 | . . 3 ⊢ ℕ0 = (ℤ≥‘0) | |
| 26 | 0nn0 12421 | . . . 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 7377 | . . . . 5 ⊢ ((((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) ∧ 𝑗 = 𝑖) → (𝐶C𝑐𝑗) = (𝐶C𝑐𝑖)) |
| 31 | simpr 484 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → 𝑖 ∈ ℕ0) | |
| 32 | ovexd 7396 | . . . . 5 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → (𝐶C𝑐𝑖) ∈ V) | |
| 33 | 28, 30, 31, 32 | fvmptd 6950 | . . . 4 ⊢ (((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) ∧ 𝑖 ∈ ℕ0) → (𝐹‘𝑖) = (𝐶C𝑐𝑖)) |
| 34 | elfznn0 13541 | . . . . . . 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 44659 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑖 ∈ ℕ0) → ((𝐶C𝑐𝑖) = 0 ↔ 𝐶 ∈ (0...(𝑖 − 1)))) |
| 40 | 39 | necon3abid 2969 | . . . . . 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 3000 | . . 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 44670 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → (𝑘 ∈ ℕ0 ↦ (abs‘((𝐹‘(𝑘 + 1)) / (𝐹‘𝑘)))) ⇝ 1) |
| 48 | ax-1ne0 11100 | . . . 4 ⊢ 1 ≠ 0 | |
| 49 | 48 | a1i 11 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 1 ≠ 0) |
| 50 | 12, 18, 19, 24, 25, 27, 43, 47, 49 | radcnvrat 44633 | . 2 ⊢ ((𝜑 ∧ ¬ 𝐶 ∈ ℕ0) → 𝑅 = (1 / 1)) |
| 51 | 1div1e1 11837 | . 2 ⊢ (1 / 1) = 1 | |
| 52 | 50, 51 | eqtrdi 2788 | 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 2933 {crab 3400 Vcvv 3441 class class class wbr 5099 ↦ cmpt 5180 dom cdm 5625 ‘cfv 6493 (class class class)co 7361 supcsup 9348 ℂcc 11029 ℝcr 11030 0cc0 11031 1c1 11032 + caddc 11034 · cmul 11036 ℝ*cxr 11170 < clt 11171 − cmin 11369 / cdiv 11799 ℕ0cn0 12406 ℝ+crp 12910 ...cfz 13428 seqcseq 13929 ↑cexp 13989 abscabs 15162 ⇝ cli 15412 C𝑐cbcc 44655 |
| 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 2185 ax-ext 2709 ax-rep 5225 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7683 ax-inf2 9555 ax-cnex 11087 ax-resscn 11088 ax-1cn 11089 ax-icn 11090 ax-addcl 11091 ax-addrcl 11092 ax-mulcl 11093 ax-mulrcl 11094 ax-mulcom 11095 ax-addass 11096 ax-mulass 11097 ax-distr 11098 ax-i2m1 11099 ax-1ne0 11100 ax-1rid 11101 ax-rnegex 11102 ax-rrecex 11103 ax-cnre 11104 ax-pre-lttri 11105 ax-pre-lttrn 11106 ax-pre-ltadd 11107 ax-pre-mulgt0 11108 ax-pre-sup 11109 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4904 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-se 5579 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-isom 6502 df-riota 7318 df-ov 7364 df-oprab 7365 df-mpo 7366 df-of 7625 df-om 7812 df-1st 7936 df-2nd 7937 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-1o 8400 df-er 8638 df-pm 8771 df-en 8889 df-dom 8890 df-sdom 8891 df-fin 8892 df-sup 9350 df-inf 9351 df-oi 9420 df-card 9856 df-pnf 11173 df-mnf 11174 df-xr 11175 df-ltxr 11176 df-le 11177 df-sub 11371 df-neg 11372 df-div 11800 df-nn 12151 df-2 12213 df-3 12214 df-n0 12407 df-z 12494 df-uz 12757 df-q 12867 df-rp 12911 df-ioo 13270 df-ico 13272 df-fz 13429 df-fzo 13576 df-fl 13717 df-seq 13930 df-exp 13990 df-fac 14202 df-hash 14259 df-shft 14995 df-cj 15027 df-re 15028 df-im 15029 df-sqrt 15163 df-abs 15164 df-limsup 15399 df-clim 15416 df-rlim 15417 df-sum 15615 df-prod 15832 df-fallfac 15935 df-bcc 44656 |
| This theorem is referenced by: binomcxplemdvbinom 44672 binomcxplemnotnn0 44675 |
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