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Mirrors > Home > MPE Home > Th. List > fsumsub | Structured version Visualization version GIF version |
Description: Split a finite sum over a subtraction. (Contributed by Scott Fenton, 12-Jun-2013.) (Revised by Mario Carneiro, 24-Apr-2014.) |
Ref | Expression |
---|---|
fsumneg.1 | ⊢ (𝜑 → 𝐴 ∈ Fin) |
fsumneg.2 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
fsumsub.3 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ ℂ) |
Ref | Expression |
---|---|
fsumsub | ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 (𝐵 − 𝐶) = (Σ𝑘 ∈ 𝐴 𝐵 − Σ𝑘 ∈ 𝐴 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fsumneg.1 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
2 | fsumneg.2 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) | |
3 | fsumsub.3 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐶 ∈ ℂ) | |
4 | 3 | negcld 10973 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → -𝐶 ∈ ℂ) |
5 | 1, 2, 4 | fsumadd 15086 | . . 3 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 (𝐵 + -𝐶) = (Σ𝑘 ∈ 𝐴 𝐵 + Σ𝑘 ∈ 𝐴 -𝐶)) |
6 | 1, 3 | fsumneg 15132 | . . . 4 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 -𝐶 = -Σ𝑘 ∈ 𝐴 𝐶) |
7 | 6 | oveq2d 7161 | . . 3 ⊢ (𝜑 → (Σ𝑘 ∈ 𝐴 𝐵 + Σ𝑘 ∈ 𝐴 -𝐶) = (Σ𝑘 ∈ 𝐴 𝐵 + -Σ𝑘 ∈ 𝐴 𝐶)) |
8 | 5, 7 | eqtrd 2856 | . 2 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 (𝐵 + -𝐶) = (Σ𝑘 ∈ 𝐴 𝐵 + -Σ𝑘 ∈ 𝐴 𝐶)) |
9 | 2, 3 | negsubd 10992 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → (𝐵 + -𝐶) = (𝐵 − 𝐶)) |
10 | 9 | sumeq2dv 15050 | . 2 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 (𝐵 + -𝐶) = Σ𝑘 ∈ 𝐴 (𝐵 − 𝐶)) |
11 | 1, 2 | fsumcl 15080 | . . 3 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 𝐵 ∈ ℂ) |
12 | 1, 3 | fsumcl 15080 | . . 3 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 𝐶 ∈ ℂ) |
13 | 11, 12 | negsubd 10992 | . 2 ⊢ (𝜑 → (Σ𝑘 ∈ 𝐴 𝐵 + -Σ𝑘 ∈ 𝐴 𝐶) = (Σ𝑘 ∈ 𝐴 𝐵 − Σ𝑘 ∈ 𝐴 𝐶)) |
14 | 8, 10, 13 | 3eqtr3d 2864 | 1 ⊢ (𝜑 → Σ𝑘 ∈ 𝐴 (𝐵 − 𝐶) = (Σ𝑘 ∈ 𝐴 𝐵 − Σ𝑘 ∈ 𝐴 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1528 ∈ wcel 2105 (class class class)co 7145 Fincfn 8498 ℂcc 10524 + caddc 10529 − cmin 10859 -cneg 10860 Σcsu 15032 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1787 ax-4 1801 ax-5 1902 ax-6 1961 ax-7 2006 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2151 ax-12 2167 ax-ext 2793 ax-rep 5182 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7450 ax-inf2 9093 ax-cnex 10582 ax-resscn 10583 ax-1cn 10584 ax-icn 10585 ax-addcl 10586 ax-addrcl 10587 ax-mulcl 10588 ax-mulrcl 10589 ax-mulcom 10590 ax-addass 10591 ax-mulass 10592 ax-distr 10593 ax-i2m1 10594 ax-1ne0 10595 ax-1rid 10596 ax-rnegex 10597 ax-rrecex 10598 ax-cnre 10599 ax-pre-lttri 10600 ax-pre-lttrn 10601 ax-pre-ltadd 10602 ax-pre-mulgt0 10603 ax-pre-sup 10604 |
This theorem depends on definitions: df-bi 208 df-an 397 df-or 842 df-3or 1080 df-3an 1081 df-tru 1531 df-fal 1541 df-ex 1772 df-nf 1776 df-sb 2061 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3497 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4466 df-pw 4539 df-sn 4560 df-pr 4562 df-tp 4564 df-op 4566 df-uni 4833 df-int 4870 df-iun 4914 df-br 5059 df-opab 5121 df-mpt 5139 df-tr 5165 df-id 5454 df-eprel 5459 df-po 5468 df-so 5469 df-fr 5508 df-se 5509 df-we 5510 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-pred 6142 df-ord 6188 df-on 6189 df-lim 6190 df-suc 6191 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-isom 6358 df-riota 7103 df-ov 7148 df-oprab 7149 df-mpo 7150 df-om 7569 df-1st 7680 df-2nd 7681 df-wrecs 7938 df-recs 7999 df-rdg 8037 df-1o 8093 df-oadd 8097 df-er 8279 df-en 8499 df-dom 8500 df-sdom 8501 df-fin 8502 df-sup 8895 df-oi 8963 df-card 9357 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-sub 10861 df-neg 10862 df-div 11287 df-nn 11628 df-2 11689 df-3 11690 df-n0 11887 df-z 11971 df-uz 12233 df-rp 12380 df-fz 12883 df-fzo 13024 df-seq 13360 df-exp 13420 df-hash 13681 df-cj 14448 df-re 14449 df-im 14450 df-sqrt 14584 df-abs 14585 df-clim 14835 df-sum 15033 |
This theorem is referenced by: fsumle 15144 fsumlt 15145 telfsumo 15147 fsumparts 15151 mertens 15232 bpolydiflem 15398 3dvds 15670 pcfac 16225 pcbc 16226 ramcl 16355 ovolicc2lem4 24050 dvfsumabs 24549 coeeulem 24743 birthdaylem2 25458 emcllem5 25505 lgamcvg2 25560 chpub 25724 logfaclbnd 25726 lgsquadlem1 25884 vmadivsum 25986 rpvmasumlem 25991 dchrmusum2 25998 dchrvmasumiflem2 26006 rpvmasum2 26016 dchrisum0lem2a 26021 dchrisum0lem2 26022 rplogsum 26031 mulogsumlem 26035 mulogsum 26036 mulog2sumlem1 26038 mulog2sumlem2 26039 mulog2sumlem3 26040 vmalogdivsum2 26042 vmalogdivsum 26043 2vmadivsumlem 26044 logsqvma 26046 selberglem1 26049 selberg3lem1 26061 selberg4lem1 26064 pntrsumo1 26069 selbergr 26072 selberg3r 26073 selberg4r 26074 selberg34r 26075 pntrlog2bndlem4 26084 pntrlog2bndlem5 26085 pntlemo 26111 ax5seglem9 26651 fwddifnp1 33524 knoppndvlem11 33759 etransclem46 42446 |
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