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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 13897 | . . . . 5 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → (1...𝑛) ∈ Fin) | |
| 2 | dvdsssfz1 16246 | . . . . . 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 9170 | . . . 4 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} ∈ Fin) |
| 5 | elrabi 3631 | . . . . . 6 ⊢ (𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} → 𝑘 ∈ ℕ) | |
| 6 | 5 | nncnd 12162 | . . . . 5 ⊢ (𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} → 𝑘 ∈ ℂ) |
| 7 | simpl 482 | . . . . 5 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → 𝑥 ∈ ℂ) | |
| 8 | cxpcl 26623 | . . . . 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 15657 | . . 3 ⊢ ((𝑥 ∈ ℂ ∧ 𝑛 ∈ ℕ) → Σ𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} (𝑘↑𝑐𝑥) ∈ ℂ) |
| 11 | 10 | rgen2 3178 | . 2 ⊢ ∀𝑥 ∈ ℂ ∀𝑛 ∈ ℕ Σ𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} (𝑘↑𝑐𝑥) ∈ ℂ |
| 12 | df-sgm 27052 | . . 3 ⊢ σ = (𝑥 ∈ ℂ, 𝑛 ∈ ℕ ↦ Σ𝑘 ∈ {𝑝 ∈ ℕ ∣ 𝑝 ∥ 𝑛} (𝑘↑𝑐𝑥)) | |
| 13 | 12 | fmpo 8012 | . 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 3052 {crab 3390 ⊆ wss 3890 class class class wbr 5086 × cxp 5620 ⟶wf 6486 (class class class)co 7358 ℂcc 11025 1c1 11028 ℕcn 12146 ...cfz 13424 Σcsu 15610 ∥ cdvds 16180 ↑𝑐ccxp 26504 σ csgm 27046 |
| 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 5212 ax-sep 5231 ax-nul 5241 ax-pow 5300 ax-pr 5368 ax-un 7680 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 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 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-iin 4937 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-se 5576 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-isom 6499 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-supp 8102 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-rdg 8340 df-1o 8396 df-2o 8397 df-er 8634 df-map 8766 df-pm 8767 df-ixp 8837 df-en 8885 df-dom 8886 df-sdom 8887 df-fin 8888 df-fsupp 9266 df-fi 9315 df-sup 9346 df-inf 9347 df-oi 9416 df-card 9852 df-pnf 11169 df-mnf 11170 df-xr 11171 df-ltxr 11172 df-le 11173 df-sub 11367 df-neg 11368 df-div 11796 df-nn 12147 df-2 12209 df-3 12210 df-4 12211 df-5 12212 df-6 12213 df-7 12214 df-8 12215 df-9 12216 df-n0 12403 df-z 12490 df-dec 12609 df-uz 12753 df-q 12863 df-rp 12907 df-xneg 13027 df-xadd 13028 df-xmul 13029 df-ioo 13266 df-ioc 13267 df-ico 13268 df-icc 13269 df-fz 13425 df-fzo 13572 df-fl 13713 df-mod 13791 df-seq 13926 df-exp 13986 df-fac 14198 df-bc 14227 df-hash 14255 df-shft 14991 df-cj 15023 df-re 15024 df-im 15025 df-sqrt 15159 df-abs 15160 df-limsup 15395 df-clim 15412 df-rlim 15413 df-sum 15611 df-ef 15991 df-sin 15993 df-cos 15994 df-pi 15996 df-dvds 16181 df-struct 17075 df-sets 17092 df-slot 17110 df-ndx 17122 df-base 17138 df-ress 17159 df-plusg 17191 df-mulr 17192 df-starv 17193 df-sca 17194 df-vsca 17195 df-ip 17196 df-tset 17197 df-ple 17198 df-ds 17200 df-unif 17201 df-hom 17202 df-cco 17203 df-rest 17343 df-topn 17344 df-0g 17362 df-gsum 17363 df-topgen 17364 df-pt 17365 df-prds 17368 df-xrs 17424 df-qtop 17429 df-imas 17430 df-xps 17432 df-mre 17506 df-mrc 17507 df-acs 17509 df-mgm 18566 df-sgrp 18645 df-mnd 18661 df-submnd 18710 df-mulg 19002 df-cntz 19250 df-cmn 19715 df-psmet 21303 df-xmet 21304 df-met 21305 df-bl 21306 df-mopn 21307 df-fbas 21308 df-fg 21309 df-cnfld 21312 df-top 22837 df-topon 22854 df-topsp 22876 df-bases 22889 df-cld 22962 df-ntr 22963 df-cls 22964 df-nei 23041 df-lp 23079 df-perf 23080 df-cn 23170 df-cnp 23171 df-haus 23258 df-tx 23505 df-hmeo 23698 df-fil 23789 df-fm 23881 df-flim 23882 df-flf 23883 df-xms 24263 df-ms 24264 df-tms 24265 df-cncf 24823 df-limc 25811 df-dv 25812 df-log 26505 df-cxp 26506 df-sgm 27052 |
| This theorem is referenced by: sgmcl 27096 |
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