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Theorem dchrisum0ff 27451

Description: The function 𝐹 is a real function. (Contributed by Mario Carneiro, 5-May-2016.)

**Hypotheses**
Ref	Expression
rpvmasum.z	⊢ 𝑍 = (ℤ/nℤ‘𝑁)
rpvmasum.l	⊢ 𝐿 = (ℤRHom‘𝑍)
rpvmasum.a	⊢ (𝜑 → 𝑁 ∈ ℕ)
rpvmasum2.g	⊢ 𝐺 = (DChr‘𝑁)
rpvmasum2.d	⊢ 𝐷 = (Base‘𝐺)
rpvmasum2.1	⊢ 1 = (0_g‘𝐺)
dchrisum0f.f	⊢ 𝐹 = (𝑏 ∈ ℕ ↦ Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} (𝑋‘(𝐿‘𝑣)))
dchrisum0f.x	⊢ (𝜑 → 𝑋 ∈ 𝐷)
dchrisum0flb.r	⊢ (𝜑 → 𝑋:(Base‘𝑍)⟶ℝ)

**Assertion**
Ref	Expression
dchrisum0ff	⊢ (𝜑 → 𝐹:ℕ⟶ℝ)

Distinct variable groups: 𝑞,𝑏,𝑣 𝑁,𝑞 𝐿,𝑏,𝑣 𝑋,𝑏,𝑣 Allowed substitution hints: 𝜑(𝑣,𝑞,𝑏) 𝐷(𝑣,𝑞,𝑏) 1 (𝑣,𝑞,𝑏) 𝐹(𝑣,𝑞,𝑏) 𝐺(𝑣,𝑞,𝑏) 𝐿(𝑞) 𝑁(𝑣,𝑏) 𝑋(𝑞) 𝑍(𝑣,𝑞,𝑏)

Proof of Theorem dchrisum0ff Dummy variables 𝑚 𝑛 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		fzfid 13914	. . . 4 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (1...𝑛) ∈ Fin)
2		dvdsssfz1 16264	. . . . 5 ⊢ (𝑛 ∈ ℕ → {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} ⊆ (1...𝑛))
3	2	adantl 481	. . . 4 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} ⊆ (1...𝑛))
4	1, 3	ssfid 9188	. . 3 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} ∈ Fin)
5		dchrisum0flb.r	. . . . 5 ⊢ (𝜑 → 𝑋:(Base‘𝑍)⟶ℝ)
6	5	ad2antrr 726	. . . 4 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛}) → 𝑋:(Base‘𝑍)⟶ℝ)
7		rpvmasum.a	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ ℕ)
8	7	nnnn0d 12479	. . . . . . 7 ⊢ (𝜑 → 𝑁 ∈ ℕ₀)
9		rpvmasum.z	. . . . . . . 8 ⊢ 𝑍 = (ℤ/nℤ‘𝑁)
10		eqid 2729	. . . . . . . 8 ⊢ (Base‘𝑍) = (Base‘𝑍)
11		rpvmasum.l	. . . . . . . 8 ⊢ 𝐿 = (ℤRHom‘𝑍)
12	9, 10, 11	znzrhfo 21489	. . . . . . 7 ⊢ (𝑁 ∈ ℕ₀ → 𝐿:ℤ–onto→(Base‘𝑍))
13		fof 6754	. . . . . . 7 ⊢ (𝐿:ℤ–onto→(Base‘𝑍) → 𝐿:ℤ⟶(Base‘𝑍))
14	8, 12, 13	3syl 18	. . . . . 6 ⊢ (𝜑 → 𝐿:ℤ⟶(Base‘𝑍))
15	14	adantr 480	. . . . 5 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝐿:ℤ⟶(Base‘𝑍))
16		elrabi 3651	. . . . . 6 ⊢ (𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} → 𝑚 ∈ ℕ)
17	16	nnzd 12532	. . . . 5 ⊢ (𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} → 𝑚 ∈ ℤ)
18		ffvelcdm 7035	. . . . 5 ⊢ ((𝐿:ℤ⟶(Base‘𝑍) ∧ 𝑚 ∈ ℤ) → (𝐿‘𝑚) ∈ (Base‘𝑍))
19	15, 17, 18	syl2an 596	. . . 4 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛}) → (𝐿‘𝑚) ∈ (Base‘𝑍))
20	6, 19	ffvelcdmd 7039	. . 3 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛}) → (𝑋‘(𝐿‘𝑚)) ∈ ℝ)
21	4, 20	fsumrecl 15676	. 2 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚)) ∈ ℝ)
22		dchrisum0f.f	. . 3 ⊢ 𝐹 = (𝑏 ∈ ℕ ↦ Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} (𝑋‘(𝐿‘𝑣)))
23		breq2 5106	. . . . . . 7 ⊢ (𝑏 = 𝑛 → (𝑞 ∥ 𝑏 ↔ 𝑞 ∥ 𝑛))
24	23	rabbidv 3410	. . . . . 6 ⊢ (𝑏 = 𝑛 → {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} = {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛})
25	24	sumeq1d 15642	. . . . 5 ⊢ (𝑏 = 𝑛 → Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} (𝑋‘(𝐿‘𝑣)) = Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑣)))
26		2fveq3 6845	. . . . . 6 ⊢ (𝑣 = 𝑚 → (𝑋‘(𝐿‘𝑣)) = (𝑋‘(𝐿‘𝑚)))
27	26	cbvsumv 15638	. . . . 5 ⊢ Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑣)) = Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚))
28	25, 27	eqtrdi 2780	. . . 4 ⊢ (𝑏 = 𝑛 → Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} (𝑋‘(𝐿‘𝑣)) = Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚)))
29	28	cbvmptv 5206	. . 3 ⊢ (𝑏 ∈ ℕ ↦ Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} (𝑋‘(𝐿‘𝑣))) = (𝑛 ∈ ℕ ↦ Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚)))
30	22, 29	eqtri 2752	. 2 ⊢ 𝐹 = (𝑛 ∈ ℕ ↦ Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚)))
31	21, 30	fmptd 7068	1 ⊢ (𝜑 → 𝐹:ℕ⟶ℝ)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 {crab 3402 ⊆ wss 3911 class class class wbr 5102 ↦ cmpt 5183 ⟶wf 6495 –onto→wfo 6497 ‘cfv 6499 (class class class)co 7369 ℝcr 11043 1c1 11045 ℕcn 12162 ℕ₀cn0 12418 ℤcz 12505 ...cfz 13444 Σcsu 15628 ∥ cdvds 16198 Basecbs 17155 0_gc0g 17378 ℤRHomczrh 21441 ℤ/nℤczn 21444 DChrcdchr 27176

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5229 ax-sep 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 ax-inf2 9570 ax-cnex 11100 ax-resscn 11101 ax-1cn 11102 ax-icn 11103 ax-addcl 11104 ax-addrcl 11105 ax-mulcl 11106 ax-mulrcl 11107 ax-mulcom 11108 ax-addass 11109 ax-mulass 11110 ax-distr 11111 ax-i2m1 11112 ax-1ne0 11113 ax-1rid 11114 ax-rnegex 11115 ax-rrecex 11116 ax-cnre 11117 ax-pre-lttri 11118 ax-pre-lttrn 11119 ax-pre-ltadd 11120 ax-pre-mulgt0 11121 ax-pre-sup 11122 ax-addf 11123 ax-mulf 11124

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3351 df-reu 3352 df-rab 3403 df-v 3446 df-sbc 3751 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4868 df-int 4907 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-se 5585 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6262 df-ord 6323 df-on 6324 df-lim 6325 df-suc 6326 df-iota 6452 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-isom 6508 df-riota 7326 df-ov 7372 df-oprab 7373 df-mpo 7374 df-om 7823 df-1st 7947 df-2nd 7948 df-tpos 8182 df-frecs 8237 df-wrecs 8268 df-recs 8317 df-rdg 8355 df-1o 8411 df-er 8648 df-ec 8650 df-qs 8654 df-map 8778 df-en 8896 df-dom 8897 df-sdom 8898 df-fin 8899 df-sup 9369 df-inf 9370 df-oi 9439 df-card 9868 df-pnf 11186 df-mnf 11187 df-xr 11188 df-ltxr 11189 df-le 11190 df-sub 11383 df-neg 11384 df-div 11812 df-nn 12163 df-2 12225 df-3 12226 df-4 12227 df-5 12228 df-6 12229 df-7 12230 df-8 12231 df-9 12232 df-n0 12419 df-z 12506 df-dec 12626 df-uz 12770 df-rp 12928 df-fz 13445 df-fzo 13592 df-seq 13943 df-exp 14003 df-hash 14272 df-cj 15041 df-re 15042 df-im 15043 df-sqrt 15177 df-abs 15178 df-clim 15430 df-sum 15629 df-dvds 16199 df-struct 17093 df-sets 17110 df-slot 17128 df-ndx 17140 df-base 17156 df-ress 17177 df-plusg 17209 df-mulr 17210 df-starv 17211 df-sca 17212 df-vsca 17213 df-ip 17214 df-tset 17215 df-ple 17216 df-ds 17218 df-unif 17219 df-0g 17380 df-imas 17447 df-qus 17448 df-mgm 18549 df-sgrp 18628 df-mnd 18644 df-mhm 18692 df-grp 18850 df-minusg 18851 df-sbg 18852 df-mulg 18982 df-subg 19037 df-nsg 19038 df-eqg 19039 df-ghm 19127 df-cmn 19696 df-abl 19697 df-mgp 20061 df-rng 20073 df-ur 20102 df-ring 20155 df-cring 20156 df-oppr 20257 df-rhm 20392 df-subrng 20466 df-subrg 20490 df-lmod 20800 df-lss 20870 df-lsp 20910 df-sra 21112 df-rgmod 21113 df-lidl 21150 df-rsp 21151 df-2idl 21192 df-cnfld 21297 df-zring 21389 df-zrh 21445 df-zn 21448

This theorem is referenced by: dchrisum0flblem2 27453 dchrisum0fno1 27455

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