| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > fsumshft | Structured version Visualization version GIF version | ||
| Description: Index shift of a finite sum. (Contributed by NM, 27-Nov-2005.) (Revised by Mario Carneiro, 24-Apr-2014.) (Proof shortened by AV, 8-Sep-2019.) |
| Ref | Expression |
|---|---|
| fsumrev.1 | ⊢ (𝜑 → 𝐾 ∈ ℤ) |
| fsumrev.2 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| fsumrev.3 | ⊢ (𝜑 → 𝑁 ∈ ℤ) |
| fsumrev.4 | ⊢ ((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → 𝐴 ∈ ℂ) |
| fsumshft.5 | ⊢ (𝑗 = (𝑘 − 𝐾) → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| fsumshft | ⊢ (𝜑 → Σ𝑗 ∈ (𝑀...𝑁)𝐴 = Σ𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fsumshft.5 | . 2 ⊢ (𝑗 = (𝑘 − 𝐾) → 𝐴 = 𝐵) | |
| 2 | fzfid 14116 | . 2 ⊢ (𝜑 → ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ∈ Fin) | |
| 3 | fsumrev.1 | . . 3 ⊢ (𝜑 → 𝐾 ∈ ℤ) | |
| 4 | fsumrev.2 | . . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 5 | fsumrev.3 | . . 3 ⊢ (𝜑 → 𝑁 ∈ ℤ) | |
| 6 | 3, 4, 5 | mptfzshft 15944 | . 2 ⊢ (𝜑 → (𝑗 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑗 − 𝐾)):((𝑀 + 𝐾)...(𝑁 + 𝐾))–1-1-onto→(𝑀...𝑁)) |
| 7 | oveq1 7427 | . . . 4 ⊢ (𝑗 = 𝑘 → (𝑗 − 𝐾) = (𝑘 − 𝐾)) | |
| 8 | eqid 2761 | . . . 4 ⊢ (𝑗 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑗 − 𝐾)) = (𝑗 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑗 − 𝐾)) | |
| 9 | ovex 7453 | . . . 4 ⊢ (𝑘 − 𝐾) ∈ V | |
| 10 | 7, 8, 9 | fvmpt 6993 | . . 3 ⊢ (𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) → ((𝑗 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑗 − 𝐾))‘𝑘) = (𝑘 − 𝐾)) |
| 11 | 10 | adantl 487 | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))) → ((𝑗 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾)) ↦ (𝑗 − 𝐾))‘𝑘) = (𝑘 − 𝐾)) |
| 12 | fsumrev.4 | . 2 ⊢ ((𝜑 ∧ 𝑗 ∈ (𝑀...𝑁)) → 𝐴 ∈ ℂ) | |
| 13 | 1, 2, 6, 11, 12 | fsumf1o 15889 | 1 ⊢ (𝜑 → Σ𝑗 ∈ (𝑀...𝑁)𝐴 = Σ𝑘 ∈ ((𝑀 + 𝐾)...(𝑁 + 𝐾))𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ↦ cmpt 5186 ‘cfv 6538 (class class class)co 7420 ℂcc 11198 + caddc 11203 − cmin 11541 ℤcz 12693 ...cfz 13639 Σcsu 15853 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 ax-inf2 9642 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 ax-pre-sup 11278 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-isom 6547 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-1o 8476 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-fin 8977 df-sup 9434 df-oi 9504 df-card 10020 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-div 11974 df-nn 12336 df-2 12405 df-3 12406 df-n0 12607 df-z 12694 df-uz 12966 df-rp 13121 df-fz 13640 df-fzo 13789 df-seq 14145 df-exp 14205 df-hash 14475 df-cj 15266 df-re 15267 df-im 15268 df-sqrt 15402 df-abs 15403 df-clim 15655 df-sum 15854 |
| This theorem is used by: fsumshftm 15947 binomlem 15998 binomfallfaclem2 16206 bpolydiflem 16220 pwp1fsum 16561 dvtaylp 26697 fsum2dsub 35236 fwddifnp1 36930 fsumshftd 40009 sticksstones10 43205 sticksstones12a 43207 dvnmul 46952 elaa2lem 47242 altgsumbcALT 49464 |
| Copyright terms: Public domain | W3C validator |