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| Mirrors > Home > MPE Home > Th. List > plycjOLD | Structured version Visualization version GIF version | ||
| Description: Obsolete version of plycj 26325 as of 22-Sep-2025. The double conjugation of a polynomial is a polynomial. (The single conjugation is not because our definition of polynomial includes only holomorphic functions, i.e. no dependence on (∗‘𝑧) independently of 𝑧.) (Contributed by Mario Carneiro, 24-Jul-2014.) (New usage is discouraged.) (Proof modification is discouraged.) |
| Ref | Expression |
|---|---|
| plycjOLD.1 | ⊢ 𝑁 = (deg‘𝐹) |
| plycjOLD.2 | ⊢ 𝐺 = ((∗ ∘ 𝐹) ∘ ∗) |
| plycjOLD.3 | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → (∗‘𝑥) ∈ 𝑆) |
| plycjOLD.4 | ⊢ (𝜑 → 𝐹 ∈ (Poly‘𝑆)) |
| Ref | Expression |
|---|---|
| plycjOLD | ⊢ (𝜑 → 𝐺 ∈ (Poly‘𝑆)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | plycjOLD.4 | . . . 4 ⊢ (𝜑 → 𝐹 ∈ (Poly‘𝑆)) | |
| 2 | plycjOLD.1 | . . . . 5 ⊢ 𝑁 = (deg‘𝐹) | |
| 3 | plycjOLD.2 | . . . . 5 ⊢ 𝐺 = ((∗ ∘ 𝐹) ∘ ∗) | |
| 4 | eqid 2761 | . . . . 5 ⊢ (coeff‘𝐹) = (coeff‘𝐹) | |
| 5 | 2, 3, 4 | plycjlem 26324 | . . . 4 ⊢ (𝐹 ∈ (Poly‘𝑆) → 𝐺 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑁)(((∗ ∘ (coeff‘𝐹))‘𝑘) · (𝑧↑𝑘)))) |
| 6 | 1, 5 | syl 17 | . . 3 ⊢ (𝜑 → 𝐺 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑁)(((∗ ∘ (coeff‘𝐹))‘𝑘) · (𝑧↑𝑘)))) |
| 7 | plybss 26242 | . . . . . 6 ⊢ (𝐹 ∈ (Poly‘𝑆) → 𝑆 ⊆ ℂ) | |
| 8 | 1, 7 | syl 17 | . . . . 5 ⊢ (𝜑 → 𝑆 ⊆ ℂ) |
| 9 | 0cnd 11166 | . . . . . 6 ⊢ (𝜑 → 0 ∈ ℂ) | |
| 10 | 9 | snssd 4742 | . . . . 5 ⊢ (𝜑 → {0} ⊆ ℂ) |
| 11 | 8, 10 | unssd 4142 | . . . 4 ⊢ (𝜑 → (𝑆 ∪ {0}) ⊆ ℂ) |
| 12 | dgrcl 26281 | . . . . . 6 ⊢ (𝐹 ∈ (Poly‘𝑆) → (deg‘𝐹) ∈ ℕ0) | |
| 13 | 1, 12 | syl 17 | . . . . 5 ⊢ (𝜑 → (deg‘𝐹) ∈ ℕ0) |
| 14 | 2, 13 | eqeltrid 2865 | . . . 4 ⊢ (𝜑 → 𝑁 ∈ ℕ0) |
| 15 | 4 | coef 26278 | . . . . . . 7 ⊢ (𝐹 ∈ (Poly‘𝑆) → (coeff‘𝐹):ℕ0⟶(𝑆 ∪ {0})) |
| 16 | 1, 15 | syl 17 | . . . . . 6 ⊢ (𝜑 → (coeff‘𝐹):ℕ0⟶(𝑆 ∪ {0})) |
| 17 | elfznn0 13619 | . . . . . 6 ⊢ (𝑘 ∈ (0...𝑁) → 𝑘 ∈ ℕ0) | |
| 18 | fvco3 6962 | . . . . . 6 ⊢ (((coeff‘𝐹):ℕ0⟶(𝑆 ∪ {0}) ∧ 𝑘 ∈ ℕ0) → ((∗ ∘ (coeff‘𝐹))‘𝑘) = (∗‘((coeff‘𝐹)‘𝑘))) | |
| 19 | 16, 17, 18 | syl2an 605 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → ((∗ ∘ (coeff‘𝐹))‘𝑘) = (∗‘((coeff‘𝐹)‘𝑘))) |
| 20 | ffvelcdm 7057 | . . . . . . 7 ⊢ (((coeff‘𝐹):ℕ0⟶(𝑆 ∪ {0}) ∧ 𝑘 ∈ ℕ0) → ((coeff‘𝐹)‘𝑘) ∈ (𝑆 ∪ {0})) | |
| 21 | 16, 17, 20 | syl2an 605 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → ((coeff‘𝐹)‘𝑘) ∈ (𝑆 ∪ {0})) |
| 22 | plycjOLD.3 | . . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑆) → (∗‘𝑥) ∈ 𝑆) | |
| 23 | 22 | ralrimiva 3153 | . . . . . . . . . 10 ⊢ (𝜑 → ∀𝑥 ∈ 𝑆 (∗‘𝑥) ∈ 𝑆) |
| 24 | fveq2 6862 | . . . . . . . . . . . 12 ⊢ (𝑥 = ((coeff‘𝐹)‘𝑘) → (∗‘𝑥) = (∗‘((coeff‘𝐹)‘𝑘))) | |
| 25 | 24 | eleq1d 2846 | . . . . . . . . . . 11 ⊢ (𝑥 = ((coeff‘𝐹)‘𝑘) → ((∗‘𝑥) ∈ 𝑆 ↔ (∗‘((coeff‘𝐹)‘𝑘)) ∈ 𝑆)) |
| 26 | 25 | rspccv 3577 | . . . . . . . . . 10 ⊢ (∀𝑥 ∈ 𝑆 (∗‘𝑥) ∈ 𝑆 → (((coeff‘𝐹)‘𝑘) ∈ 𝑆 → (∗‘((coeff‘𝐹)‘𝑘)) ∈ 𝑆)) |
| 27 | 23, 26 | syl 17 | . . . . . . . . 9 ⊢ (𝜑 → (((coeff‘𝐹)‘𝑘) ∈ 𝑆 → (∗‘((coeff‘𝐹)‘𝑘)) ∈ 𝑆)) |
| 28 | elsni 4596 | . . . . . . . . . . . . 13 ⊢ (((coeff‘𝐹)‘𝑘) ∈ {0} → ((coeff‘𝐹)‘𝑘) = 0) | |
| 29 | 28 | fveq2d 6866 | . . . . . . . . . . . 12 ⊢ (((coeff‘𝐹)‘𝑘) ∈ {0} → (∗‘((coeff‘𝐹)‘𝑘)) = (∗‘0)) |
| 30 | cj0 15176 | . . . . . . . . . . . 12 ⊢ (∗‘0) = 0 | |
| 31 | 29, 30 | eqtrdi 2812 | . . . . . . . . . . 11 ⊢ (((coeff‘𝐹)‘𝑘) ∈ {0} → (∗‘((coeff‘𝐹)‘𝑘)) = 0) |
| 32 | fvex 6875 | . . . . . . . . . . . 12 ⊢ (∗‘((coeff‘𝐹)‘𝑘)) ∈ V | |
| 33 | 32 | elsn 4594 | . . . . . . . . . . 11 ⊢ ((∗‘((coeff‘𝐹)‘𝑘)) ∈ {0} ↔ (∗‘((coeff‘𝐹)‘𝑘)) = 0) |
| 34 | 31, 33 | sylibr 236 | . . . . . . . . . 10 ⊢ (((coeff‘𝐹)‘𝑘) ∈ {0} → (∗‘((coeff‘𝐹)‘𝑘)) ∈ {0}) |
| 35 | 34 | a1i 11 | . . . . . . . . 9 ⊢ (𝜑 → (((coeff‘𝐹)‘𝑘) ∈ {0} → (∗‘((coeff‘𝐹)‘𝑘)) ∈ {0})) |
| 36 | 27, 35 | orim12d 977 | . . . . . . . 8 ⊢ (𝜑 → ((((coeff‘𝐹)‘𝑘) ∈ 𝑆 ∨ ((coeff‘𝐹)‘𝑘) ∈ {0}) → ((∗‘((coeff‘𝐹)‘𝑘)) ∈ 𝑆 ∨ (∗‘((coeff‘𝐹)‘𝑘)) ∈ {0}))) |
| 37 | elun 4104 | . . . . . . . 8 ⊢ (((coeff‘𝐹)‘𝑘) ∈ (𝑆 ∪ {0}) ↔ (((coeff‘𝐹)‘𝑘) ∈ 𝑆 ∨ ((coeff‘𝐹)‘𝑘) ∈ {0})) | |
| 38 | elun 4104 | . . . . . . . 8 ⊢ ((∗‘((coeff‘𝐹)‘𝑘)) ∈ (𝑆 ∪ {0}) ↔ ((∗‘((coeff‘𝐹)‘𝑘)) ∈ 𝑆 ∨ (∗‘((coeff‘𝐹)‘𝑘)) ∈ {0})) | |
| 39 | 36, 37, 38 | 3imtr4g 298 | . . . . . . 7 ⊢ (𝜑 → (((coeff‘𝐹)‘𝑘) ∈ (𝑆 ∪ {0}) → (∗‘((coeff‘𝐹)‘𝑘)) ∈ (𝑆 ∪ {0}))) |
| 40 | 39 | adantr 484 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → (((coeff‘𝐹)‘𝑘) ∈ (𝑆 ∪ {0}) → (∗‘((coeff‘𝐹)‘𝑘)) ∈ (𝑆 ∪ {0}))) |
| 41 | 21, 40 | mpd 15 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → (∗‘((coeff‘𝐹)‘𝑘)) ∈ (𝑆 ∪ {0})) |
| 42 | 19, 41 | eqeltrd 2861 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...𝑁)) → ((∗ ∘ (coeff‘𝐹))‘𝑘) ∈ (𝑆 ∪ {0})) |
| 43 | 11, 14, 42 | elplyd 26250 | . . 3 ⊢ (𝜑 → (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑁)(((∗ ∘ (coeff‘𝐹))‘𝑘) · (𝑧↑𝑘))) ∈ (Poly‘(𝑆 ∪ {0}))) |
| 44 | 6, 43 | eqeltrd 2861 | . 2 ⊢ (𝜑 → 𝐺 ∈ (Poly‘(𝑆 ∪ {0}))) |
| 45 | plyun0 26245 | . 2 ⊢ (Poly‘(𝑆 ∪ {0})) = (Poly‘𝑆) | |
| 46 | 44, 45 | eleqtrdi 2871 | 1 ⊢ (𝜑 → 𝐺 ∈ (Poly‘𝑆)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 ∨ wo 858 = wceq 1559 ∈ wcel 2141 ∀wral 3075 ∪ cun 3900 ⊆ wss 3902 {csn 4579 ↦ cmpt 5178 ∘ ccom 5647 ⟶wf 6512 ‘cfv 6516 (class class class)co 7391 ℂcc 11065 0cc0 11067 · cmul 11072 ℕ0cn0 12475 ...cfz 13506 ↑cexp 14068 ∗ccj 15114 Σcsu 15704 Polycply 26232 coeffccoe 26234 degcdgr 26235 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5224 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7713 ax-inf2 9590 ax-cnex 11123 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-addrcl 11128 ax-mulcl 11129 ax-mulrcl 11130 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-i2m1 11135 ax-1ne0 11136 ax-1rid 11137 ax-rnegex 11138 ax-rrecex 11139 ax-cnre 11140 ax-pre-lttri 11141 ax-pre-lttrn 11142 ax-pre-ltadd 11143 ax-pre-mulgt0 11144 ax-pre-sup 11145 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-int 4903 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-se 5597 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6283 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-isom 6525 df-riota 7348 df-ov 7394 df-oprab 7395 df-mpo 7396 df-of 7655 df-om 7842 df-1st 7965 df-2nd 7966 df-frecs 8256 df-wrecs 8287 df-recs 8336 df-rdg 8375 df-1o 8431 df-er 8672 df-map 8804 df-pm 8805 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-sup 9382 df-inf 9383 df-oi 9452 df-card 9891 df-pnf 11212 df-mnf 11213 df-xr 11214 df-ltxr 11215 df-le 11216 df-sub 11410 df-neg 11411 df-div 11839 df-nn 12205 df-2 12274 df-3 12275 df-n0 12476 df-z 12563 df-uz 12834 df-rp 12988 df-fz 13507 df-fzo 13654 df-fl 13796 df-seq 14009 df-exp 14069 df-hash 14338 df-cj 15117 df-re 15118 df-im 15119 df-sqrt 15253 df-abs 15254 df-clim 15506 df-rlim 15507 df-sum 15705 df-0p 25720 df-ply 26236 df-coe 26238 df-dgr 26239 |
| This theorem is referenced by: coecjOLD 26328 |
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