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Mirrors > Home > MPE Home > Th. List > Mathboxes > fz1sump1 | Structured version Visualization version GIF version |
Description: Add one more term to a sum. Special case of fsump1 15701 generalized to 𝑁 ∈ ℕ0. (Contributed by SN, 22-Mar-2025.) |
Ref | Expression |
---|---|
fz1sump1.n | ⊢ (𝜑 → 𝑁 ∈ ℕ0) |
fz1sump1.a | ⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝐴 ∈ ℂ) |
fz1sump1.s | ⊢ (𝑘 = (𝑁 + 1) → 𝐴 = 𝐵) |
Ref | Expression |
---|---|
fz1sump1 | ⊢ (𝜑 → Σ𝑘 ∈ (1...(𝑁 + 1))𝐴 = (Σ𝑘 ∈ (1...𝑁)𝐴 + 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fz1sump1.n | . . . . 5 ⊢ (𝜑 → 𝑁 ∈ ℕ0) | |
2 | nn0p1nn 12510 | . . . . 5 ⊢ (𝑁 ∈ ℕ0 → (𝑁 + 1) ∈ ℕ) | |
3 | 1, 2 | syl 17 | . . . 4 ⊢ (𝜑 → (𝑁 + 1) ∈ ℕ) |
4 | nnuz 12864 | . . . 4 ⊢ ℕ = (ℤ≥‘1) | |
5 | 3, 4 | eleqtrdi 2843 | . . 3 ⊢ (𝜑 → (𝑁 + 1) ∈ (ℤ≥‘1)) |
6 | fz1sump1.a | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝑁 + 1))) → 𝐴 ∈ ℂ) | |
7 | fz1sump1.s | . . 3 ⊢ (𝑘 = (𝑁 + 1) → 𝐴 = 𝐵) | |
8 | 5, 6, 7 | fsumm1 15696 | . 2 ⊢ (𝜑 → Σ𝑘 ∈ (1...(𝑁 + 1))𝐴 = (Σ𝑘 ∈ (1...((𝑁 + 1) − 1))𝐴 + 𝐵)) |
9 | 1 | nn0cnd 12533 | . . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℂ) |
10 | 1cnd 11208 | . . . . . 6 ⊢ (𝜑 → 1 ∈ ℂ) | |
11 | 9, 10 | pncand 11571 | . . . . 5 ⊢ (𝜑 → ((𝑁 + 1) − 1) = 𝑁) |
12 | 11 | oveq2d 7424 | . . . 4 ⊢ (𝜑 → (1...((𝑁 + 1) − 1)) = (1...𝑁)) |
13 | 12 | sumeq1d 15646 | . . 3 ⊢ (𝜑 → Σ𝑘 ∈ (1...((𝑁 + 1) − 1))𝐴 = Σ𝑘 ∈ (1...𝑁)𝐴) |
14 | 13 | oveq1d 7423 | . 2 ⊢ (𝜑 → (Σ𝑘 ∈ (1...((𝑁 + 1) − 1))𝐴 + 𝐵) = (Σ𝑘 ∈ (1...𝑁)𝐴 + 𝐵)) |
15 | 8, 14 | eqtrd 2772 | 1 ⊢ (𝜑 → Σ𝑘 ∈ (1...(𝑁 + 1))𝐴 = (Σ𝑘 ∈ (1...𝑁)𝐴 + 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ‘cfv 6543 (class class class)co 7408 ℂcc 11107 1c1 11110 + caddc 11112 − cmin 11443 ℕcn 12211 ℕ0cn0 12471 ℤ≥cuz 12821 ...cfz 13483 Σcsu 15631 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7724 ax-inf2 9635 ax-cnex 11165 ax-resscn 11166 ax-1cn 11167 ax-icn 11168 ax-addcl 11169 ax-addrcl 11170 ax-mulcl 11171 ax-mulrcl 11172 ax-mulcom 11173 ax-addass 11174 ax-mulass 11175 ax-distr 11176 ax-i2m1 11177 ax-1ne0 11178 ax-1rid 11179 ax-rnegex 11180 ax-rrecex 11181 ax-cnre 11182 ax-pre-lttri 11183 ax-pre-lttrn 11184 ax-pre-ltadd 11185 ax-pre-mulgt0 11186 ax-pre-sup 11187 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-int 4951 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-se 5632 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7364 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7855 df-1st 7974 df-2nd 7975 df-frecs 8265 df-wrecs 8296 df-recs 8370 df-rdg 8409 df-1o 8465 df-er 8702 df-en 8939 df-dom 8940 df-sdom 8941 df-fin 8942 df-sup 9436 df-oi 9504 df-card 9933 df-pnf 11249 df-mnf 11250 df-xr 11251 df-ltxr 11252 df-le 11253 df-sub 11445 df-neg 11446 df-div 11871 df-nn 12212 df-2 12274 df-3 12275 df-n0 12472 df-z 12558 df-uz 12822 df-rp 12974 df-fz 13484 df-fzo 13627 df-seq 13966 df-exp 14027 df-hash 14290 df-cj 15045 df-re 15046 df-im 15047 df-sqrt 15181 df-abs 15182 df-clim 15431 df-sum 15632 |
This theorem is referenced by: sumcubes 41211 |
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