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Theorem dchrisum0ff 26636

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 13674	. . . 4 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (1...𝑛) ∈ Fin)
2		dvdsssfz1 16008	. . . . 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 9003	. . 3 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} ∈ Fin)
5		dchrisum0flb.r	. . . . 5 ⊢ (𝜑 → 𝑋:(Base‘𝑍)⟶ℝ)
6	5	ad2antrr 722	. . . 4 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛}) → 𝑋:(Base‘𝑍)⟶ℝ)
7		rpvmasum.a	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ ℕ)
8	7	nnnn0d 12276	. . . . . . 7 ⊢ (𝜑 → 𝑁 ∈ ℕ₀)
9		rpvmasum.z	. . . . . . . 8 ⊢ 𝑍 = (ℤ/nℤ‘𝑁)
10		eqid 2739	. . . . . . . 8 ⊢ (Base‘𝑍) = (Base‘𝑍)
11		rpvmasum.l	. . . . . . . 8 ⊢ 𝐿 = (ℤRHom‘𝑍)
12	9, 10, 11	znzrhfo 20736	. . . . . . 7 ⊢ (𝑁 ∈ ℕ₀ → 𝐿:ℤ–onto→(Base‘𝑍))
13		fof 6684	. . . . . . 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 3619	. . . . . 6 ⊢ (𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} → 𝑚 ∈ ℕ)
17	16	nnzd 12407	. . . . 5 ⊢ (𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} → 𝑚 ∈ ℤ)
18		ffvelrn 6953	. . . . 5 ⊢ ((𝐿:ℤ⟶(Base‘𝑍) ∧ 𝑚 ∈ ℤ) → (𝐿‘𝑚) ∈ (Base‘𝑍))
19	15, 17, 18	syl2an 595	. . . 4 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛}) → (𝐿‘𝑚) ∈ (Base‘𝑍))
20	6, 19	ffvelrnd 6956	. . 3 ⊢ (((𝜑 ∧ 𝑛 ∈ ℕ) ∧ 𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛}) → (𝑋‘(𝐿‘𝑚)) ∈ ℝ)
21	4, 20	fsumrecl 15427	. 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 5082	. . . . . . 7 ⊢ (𝑏 = 𝑛 → (𝑞 ∥ 𝑏 ↔ 𝑞 ∥ 𝑛))
24	23	rabbidv 3412	. . . . . 6 ⊢ (𝑏 = 𝑛 → {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} = {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛})
25	24	sumeq1d 15394	. . . . 5 ⊢ (𝑏 = 𝑛 → Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} (𝑋‘(𝐿‘𝑣)) = Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑣)))
26		2fveq3 6773	. . . . . 6 ⊢ (𝑣 = 𝑚 → (𝑋‘(𝐿‘𝑣)) = (𝑋‘(𝐿‘𝑚)))
27	26	cbvsumv 15389	. . . . 5 ⊢ Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑣)) = Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚))
28	25, 27	eqtrdi 2795	. . . 4 ⊢ (𝑏 = 𝑛 → Σ𝑣 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑏} (𝑋‘(𝐿‘𝑣)) = Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚)))
29	28	cbvmptv 5191	. . 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 2767	. 2 ⊢ 𝐹 = (𝑛 ∈ ℕ ↦ Σ𝑚 ∈ {𝑞 ∈ ℕ ∣ 𝑞 ∥ 𝑛} (𝑋‘(𝐿‘𝑚)))
31	21, 30	fmptd 6982	1 ⊢ (𝜑 → 𝐹:ℕ⟶ℝ)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2109 {crab 3069 ⊆ wss 3891 class class class wbr 5078 ↦ cmpt 5161 ⟶wf 6426 –onto→wfo 6428 ‘cfv 6430 (class class class)co 7268 ℝcr 10854 1c1 10856 ℕcn 11956 ℕ₀cn0 12216 ℤcz 12302 ...cfz 13221 Σcsu 15378 ∥ cdvds 15944 Basecbs 16893 0_gc0g 17131 ℤRHomczrh 20682 ℤ/nℤczn 20685 DChrcdchr 26361

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-inf2 9360 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 ax-pre-sup 10933 ax-addf 10934 ax-mulf 10935

This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-int 4885 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-se 5544 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-isom 6439 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7701 df-1st 7817 df-2nd 7818 df-tpos 8026 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-er 8472 df-ec 8474 df-qs 8478 df-map 8591 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-sup 9162 df-inf 9163 df-oi 9230 df-card 9681 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-div 11616 df-nn 11957 df-2 12019 df-3 12020 df-4 12021 df-5 12022 df-6 12023 df-7 12024 df-8 12025 df-9 12026 df-n0 12217 df-z 12303 df-dec 12420 df-uz 12565 df-rp 12713 df-fz 13222 df-fzo 13365 df-seq 13703 df-exp 13764 df-hash 14026 df-cj 14791 df-re 14792 df-im 14793 df-sqrt 14927 df-abs 14928 df-clim 15178 df-sum 15379 df-dvds 15945 df-struct 16829 df-sets 16846 df-slot 16864 df-ndx 16876 df-base 16894 df-ress 16923 df-plusg 16956 df-mulr 16957 df-starv 16958 df-sca 16959 df-vsca 16960 df-ip 16961 df-tset 16962 df-ple 16963 df-ds 16965 df-unif 16966 df-0g 17133 df-imas 17200 df-qus 17201 df-mgm 18307 df-sgrp 18356 df-mnd 18367 df-mhm 18411 df-grp 18561 df-minusg 18562 df-sbg 18563 df-mulg 18682 df-subg 18733 df-nsg 18734 df-eqg 18735 df-ghm 18813 df-cmn 19369 df-abl 19370 df-mgp 19702 df-ur 19719 df-ring 19766 df-cring 19767 df-oppr 19843 df-rnghom 19940 df-subrg 20003 df-lmod 20106 df-lss 20175 df-lsp 20215 df-sra 20415 df-rgmod 20416 df-lidl 20417 df-rsp 20418 df-2idl 20484 df-cnfld 20579 df-zring 20652 df-zrh 20686 df-zn 20689

This theorem is referenced by: dchrisum0flblem2 26638 dchrisum0fno1 26640

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