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Mirrors > Home > ILE Home > Th. List > isumrb | GIF version |
Description: Rebase the starting point of a sum. (Contributed by Jim Kingdon, 5-Mar-2022.) |
Ref | Expression |
---|---|
isummo.1 | ⊢ 𝐹 = (𝑘 ∈ ℤ ↦ if(𝑘 ∈ 𝐴, 𝐵, 0)) |
isummo.2 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
isumrb.4 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
isumrb.5 | ⊢ (𝜑 → 𝑁 ∈ ℤ) |
isumrb.6 | ⊢ (𝜑 → 𝐴 ⊆ (ℤ≥‘𝑀)) |
isumrb.7 | ⊢ (𝜑 → 𝐴 ⊆ (ℤ≥‘𝑁)) |
isumrb.mdc | ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → DECID 𝑘 ∈ 𝐴) |
isumrb.ndc | ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑁)) → DECID 𝑘 ∈ 𝐴) |
Ref | Expression |
---|---|
isumrb | ⊢ (𝜑 → (seq𝑀( + , 𝐹, ℂ) ⇝ 𝐶 ↔ seq𝑁( + , 𝐹, ℂ) ⇝ 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | isumrb.5 | . . . . 5 ⊢ (𝜑 → 𝑁 ∈ ℤ) | |
2 | 1 | adantr 271 | . . . 4 ⊢ ((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) → 𝑁 ∈ ℤ) |
3 | iseqex 9917 | . . . 4 ⊢ seq𝑀( + , 𝐹, ℂ) ∈ V | |
4 | climres 10752 | . . . 4 ⊢ ((𝑁 ∈ ℤ ∧ seq𝑀( + , 𝐹, ℂ) ∈ V) → ((seq𝑀( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑁)) ⇝ 𝐶 ↔ seq𝑀( + , 𝐹, ℂ) ⇝ 𝐶)) | |
5 | 2, 3, 4 | sylancl 405 | . . 3 ⊢ ((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) → ((seq𝑀( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑁)) ⇝ 𝐶 ↔ seq𝑀( + , 𝐹, ℂ) ⇝ 𝐶)) |
6 | isumrb.7 | . . . . 5 ⊢ (𝜑 → 𝐴 ⊆ (ℤ≥‘𝑁)) | |
7 | isummo.1 | . . . . . 6 ⊢ 𝐹 = (𝑘 ∈ ℤ ↦ if(𝑘 ∈ 𝐴, 𝐵, 0)) | |
8 | isummo.2 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) | |
9 | 8 | adantlr 462 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
10 | isumrb.mdc | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → DECID 𝑘 ∈ 𝐴) | |
11 | 10 | adantlr 462 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → DECID 𝑘 ∈ 𝐴) |
12 | simpr 109 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) → 𝑁 ∈ (ℤ≥‘𝑀)) | |
13 | 7, 9, 11, 12 | isumrblem 10826 | . . . . 5 ⊢ (((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) ∧ 𝐴 ⊆ (ℤ≥‘𝑁)) → (seq𝑀( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑁)) = seq𝑁( + , 𝐹, ℂ)) |
14 | 6, 13 | mpidan 415 | . . . 4 ⊢ ((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) → (seq𝑀( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑁)) = seq𝑁( + , 𝐹, ℂ)) |
15 | 14 | breq1d 3861 | . . 3 ⊢ ((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) → ((seq𝑀( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑁)) ⇝ 𝐶 ↔ seq𝑁( + , 𝐹, ℂ) ⇝ 𝐶)) |
16 | 5, 15 | bitr3d 189 | . 2 ⊢ ((𝜑 ∧ 𝑁 ∈ (ℤ≥‘𝑀)) → (seq𝑀( + , 𝐹, ℂ) ⇝ 𝐶 ↔ seq𝑁( + , 𝐹, ℂ) ⇝ 𝐶)) |
17 | isumrb.6 | . . . . 5 ⊢ (𝜑 → 𝐴 ⊆ (ℤ≥‘𝑀)) | |
18 | 8 | adantlr 462 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ ℂ) |
19 | isumrb.ndc | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ (ℤ≥‘𝑁)) → DECID 𝑘 ∈ 𝐴) | |
20 | 19 | adantlr 462 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) ∧ 𝑘 ∈ (ℤ≥‘𝑁)) → DECID 𝑘 ∈ 𝐴) |
21 | simpr 109 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) → 𝑀 ∈ (ℤ≥‘𝑁)) | |
22 | 7, 18, 20, 21 | isumrblem 10826 | . . . . 5 ⊢ (((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) ∧ 𝐴 ⊆ (ℤ≥‘𝑀)) → (seq𝑁( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑀)) = seq𝑀( + , 𝐹, ℂ)) |
23 | 17, 22 | mpidan 415 | . . . 4 ⊢ ((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) → (seq𝑁( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑀)) = seq𝑀( + , 𝐹, ℂ)) |
24 | 23 | breq1d 3861 | . . 3 ⊢ ((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) → ((seq𝑁( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑀)) ⇝ 𝐶 ↔ seq𝑀( + , 𝐹, ℂ) ⇝ 𝐶)) |
25 | isumrb.4 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
26 | 25 | adantr 271 | . . . 4 ⊢ ((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) → 𝑀 ∈ ℤ) |
27 | iseqex 9917 | . . . 4 ⊢ seq𝑁( + , 𝐹, ℂ) ∈ V | |
28 | climres 10752 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ seq𝑁( + , 𝐹, ℂ) ∈ V) → ((seq𝑁( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑀)) ⇝ 𝐶 ↔ seq𝑁( + , 𝐹, ℂ) ⇝ 𝐶)) | |
29 | 26, 27, 28 | sylancl 405 | . . 3 ⊢ ((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) → ((seq𝑁( + , 𝐹, ℂ) ↾ (ℤ≥‘𝑀)) ⇝ 𝐶 ↔ seq𝑁( + , 𝐹, ℂ) ⇝ 𝐶)) |
30 | 24, 29 | bitr3d 189 | . 2 ⊢ ((𝜑 ∧ 𝑀 ∈ (ℤ≥‘𝑁)) → (seq𝑀( + , 𝐹, ℂ) ⇝ 𝐶 ↔ seq𝑁( + , 𝐹, ℂ) ⇝ 𝐶)) |
31 | uztric 9101 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑁 ∈ (ℤ≥‘𝑀) ∨ 𝑀 ∈ (ℤ≥‘𝑁))) | |
32 | 25, 1, 31 | syl2anc 404 | . 2 ⊢ (𝜑 → (𝑁 ∈ (ℤ≥‘𝑀) ∨ 𝑀 ∈ (ℤ≥‘𝑁))) |
33 | 16, 30, 32 | mpjaodan 748 | 1 ⊢ (𝜑 → (seq𝑀( + , 𝐹, ℂ) ⇝ 𝐶 ↔ seq𝑁( + , 𝐹, ℂ) ⇝ 𝐶)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ↔ wb 104 ∨ wo 665 DECID wdc 781 = wceq 1290 ∈ wcel 1439 Vcvv 2620 ⊆ wss 3000 ifcif 3397 class class class wbr 3851 ↦ cmpt 3905 ↾ cres 4454 ‘cfv 5028 ℂcc 7409 0cc0 7411 + caddc 7414 ℤcz 8811 ℤ≥cuz 9080 seqcseq4 9912 ⇝ cli 10727 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 580 ax-in2 581 ax-io 666 ax-5 1382 ax-7 1383 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-8 1441 ax-10 1442 ax-11 1443 ax-i12 1444 ax-bndl 1445 ax-4 1446 ax-13 1450 ax-14 1451 ax-17 1465 ax-i9 1469 ax-ial 1473 ax-i5r 1474 ax-ext 2071 ax-coll 3960 ax-sep 3963 ax-nul 3971 ax-pow 4015 ax-pr 4045 ax-un 4269 ax-setind 4366 ax-iinf 4416 ax-cnex 7497 ax-resscn 7498 ax-1cn 7499 ax-1re 7500 ax-icn 7501 ax-addcl 7502 ax-addrcl 7503 ax-mulcl 7504 ax-addcom 7506 ax-addass 7508 ax-distr 7510 ax-i2m1 7511 ax-0lt1 7512 ax-0id 7514 ax-rnegex 7515 ax-cnre 7517 ax-pre-ltirr 7518 ax-pre-ltwlin 7519 ax-pre-lttrn 7520 ax-pre-apti 7521 ax-pre-ltadd 7522 |
This theorem depends on definitions: df-bi 116 df-dc 782 df-3or 926 df-3an 927 df-tru 1293 df-fal 1296 df-nf 1396 df-sb 1694 df-eu 1952 df-mo 1953 df-clab 2076 df-cleq 2082 df-clel 2085 df-nfc 2218 df-ne 2257 df-nel 2352 df-ral 2365 df-rex 2366 df-reu 2367 df-rab 2369 df-v 2622 df-sbc 2842 df-csb 2935 df-dif 3002 df-un 3004 df-in 3006 df-ss 3013 df-nul 3288 df-if 3398 df-pw 3435 df-sn 3456 df-pr 3457 df-op 3459 df-uni 3660 df-int 3695 df-iun 3738 df-br 3852 df-opab 3906 df-mpt 3907 df-tr 3943 df-id 4129 df-iord 4202 df-on 4204 df-ilim 4205 df-suc 4207 df-iom 4419 df-xp 4458 df-rel 4459 df-cnv 4460 df-co 4461 df-dm 4462 df-rn 4463 df-res 4464 df-ima 4465 df-iota 4993 df-fun 5030 df-fn 5031 df-f 5032 df-f1 5033 df-fo 5034 df-f1o 5035 df-fv 5036 df-riota 5622 df-ov 5669 df-oprab 5670 df-mpt2 5671 df-1st 5925 df-2nd 5926 df-recs 6084 df-frec 6170 df-pnf 7585 df-mnf 7586 df-xr 7587 df-ltxr 7588 df-le 7589 df-sub 7716 df-neg 7717 df-inn 8484 df-n0 8735 df-z 8812 df-uz 9081 df-fz 9486 df-fzo 9615 df-iseq 9914 df-clim 10728 |
This theorem is referenced by: isummo 10834 zisum 10835 |
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