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| Mirrors > Home > MPE Home > Th. List > sgmf | Structured version Visualization version GIF version | ||
| Description: The divisor function is a function into the complex numbers. (Contributed by Mario Carneiro, 22-Sep-2014.) (Revised by Mario Carneiro, 21-Jun-2015.) |
| Ref | Expression |
|---|---|
| sgmf | ⊢ σ :(ℂ × ℕ)⟶ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fzfid 13924 | . . . . 5 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → (1...𝑛) ∈ Fin) | |
| 2 | dvdsssfz1 16276 | . . . . . 6 ⊢ (𝑛 ∈ ℕ → {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} ⊆ (1...𝑛)) | |
| 3 | 2 | adantl 481 | . . . . 5 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} ⊆ (1...𝑛)) |
| 4 | 1, 3 | ssfid 9168 | . . . 4 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} ∈ Fin) |
| 5 | elrabi 3627 | . . . . . 6 ⊢ (𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} → 𝑘 ∈ ℕ) | |
| 6 | 5 | nncnd 12179 | . . . . 5 ⊢ (𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} → 𝑘 ∈ ℂ) |
| 7 | simpl 482 | . . . . 5 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → 𝑥 ∈ ℂ) | |
| 8 | cxpcl 26626 | . . . . 5 ⊢ ((𝑘 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝑘↑𝑐𝑥) ∈ ℂ) | |
| 9 | 6, 7, 8 | syl2anr 598 | . . . 4 ⊢ (((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) ∧ 𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛}) → (𝑘↑𝑐𝑥) ∈ ℂ) |
| 10 | 4, 9 | fsumcl 15684 | . . 3 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → Σ𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} (𝑘↑𝑐𝑥) ∈ ℂ) |
| 11 | 10 | rgen2 3175 | . 2 ⊢ ∀𝑥 ∈ ℂ ∀𝑛 ∈ ℕ Σ𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} (𝑘↑𝑐𝑥) ∈ ℂ |
| 12 | df-sgm 27053 | . . 3 ⊢ σ = (𝑥 ∈ ℂ, 𝑛 ∈ ℕ ↦ Σ𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} (𝑘↑𝑐𝑥)) | |
| 13 | 12 | fmpo 8010 | . 2 ⊢ (∀𝑥 ∈ ℂ ∀𝑛 ∈ ℕ Σ𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} (𝑘↑𝑐𝑥) ∈ ℂ ↔ σ :(ℂ × ℕ)⟶ℂ) |
| 14 | 11, 13 | mpbi 230 | 1 ⊢ σ :(ℂ × ℕ)⟶ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ wa 395 ∈ wcel 2114 ∀wral 3049 {crab 3387 ⊆ wss 3885 class class class wbr 5074 × cxp 5618 ⟶wf 6483 (class class class)co 7356 ℂcc 11025 1c1 11028 ℕcn 12163 ...cfz 13450 Σcsu 15637 ∥ cdvds 16210 ↑𝑐ccxp 26507 σ csgm 27047 |
| 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 2184 ax-ext 2707 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-inf2 9551 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 ax-pre-sup 11105 ax-addf 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 2931 df-nel 3035 df-ral 3050 df-rex 3060 df-rmo 3340 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-tp 4562 df-op 4564 df-uni 4841 df-int 4880 df-iun 4925 df-iin 4926 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-se 5574 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 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-isom 6496 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-of 7620 df-om 7807 df-1st 7931 df-2nd 7932 df-supp 8100 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-2o 8395 df-er 8632 df-map 8764 df-pm 8765 df-ixp 8835 df-en 8883 df-dom 8884 df-sdom 8885 df-fin 8886 df-fsupp 9264 df-fi 9313 df-sup 9344 df-inf 9345 df-oi 9414 df-card 9852 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 12164 df-2 12233 df-3 12234 df-4 12235 df-5 12236 df-6 12237 df-7 12238 df-8 12239 df-9 12240 df-n0 12427 df-z 12514 df-dec 12634 df-uz 12778 df-q 12888 df-rp 12932 df-xneg 13052 df-xadd 13053 df-xmul 13054 df-ioo 13291 df-ioc 13292 df-ico 13293 df-icc 13294 df-fz 13451 df-fzo 13598 df-fl 13740 df-mod 13818 df-seq 13953 df-exp 14013 df-fac 14225 df-bc 14254 df-hash 14282 df-shft 15018 df-cj 15050 df-re 15051 df-im 15052 df-sqrt 15186 df-abs 15187 df-limsup 15422 df-clim 15439 df-rlim 15440 df-sum 15638 df-ef 16021 df-sin 16023 df-cos 16024 df-pi 16026 df-dvds 16211 df-struct 17106 df-sets 17123 df-slot 17141 df-ndx 17153 df-base 17169 df-ress 17190 df-plusg 17222 df-mulr 17223 df-starv 17224 df-sca 17225 df-vsca 17226 df-ip 17227 df-tset 17228 df-ple 17229 df-ds 17231 df-unif 17232 df-hom 17233 df-cco 17234 df-rest 17374 df-topn 17375 df-0g 17393 df-gsum 17394 df-topgen 17395 df-pt 17396 df-prds 17399 df-xrs 17455 df-qtop 17460 df-imas 17461 df-xps 17463 df-mre 17537 df-mrc 17538 df-acs 17540 df-mgm 18597 df-sgrp 18676 df-mnd 18692 df-submnd 18741 df-mulg 19033 df-cntz 19281 df-cmn 19746 df-psmet 21333 df-xmet 21334 df-met 21335 df-bl 21336 df-mopn 21337 df-fbas 21338 df-fg 21339 df-cnfld 21342 df-top 22847 df-topon 22864 df-topsp 22886 df-bases 22899 df-cld 22972 df-ntr 22973 df-cls 22974 df-nei 23051 df-lp 23089 df-perf 23090 df-cn 23180 df-cnp 23181 df-haus 23268 df-tx 23515 df-hmeo 23708 df-fil 23799 df-fm 23891 df-flim 23892 df-flf 23893 df-xms 24273 df-ms 24274 df-tms 24275 df-cncf 24833 df-limc 25821 df-dv 25822 df-log 26508 df-cxp 26509 df-sgm 27053 |
| This theorem is referenced by: sgmcl 27097 |
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