| Mathbox for Steven Nguyen |
< Previous
Next >
Nearby theorems |
||
| 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 15835 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 12563 | . . . . 5 ⊢ (𝑁 ∈ ℕ0 → (𝑁 + 1) ∈ ℕ) | |
| 3 | 1, 2 | syl 18 | . . . 4 ⊢ (𝜑 → (𝑁 + 1) ∈ ℕ) |
| 4 | nnuz 12922 | . . . 4 ⊢ ℕ = (ℤ≥‘1) | |
| 5 | 3, 4 | eleqtrdi 2875 | . . 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 15830 | . 2 ⊢ (𝜑 → Σ𝑘 ∈ (1...(𝑁 + 1))𝐴 = (Σ𝑘 ∈ (1...((𝑁 + 1) − 1))𝐴 + 𝐵)) |
| 9 | 1 | nn0cnd 12587 | . . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℂ) |
| 10 | 1cnd 11222 | . . . . . 6 ⊢ (𝜑 → 1 ∈ ℂ) | |
| 11 | 9, 10 | pncand 11590 | . . . . 5 ⊢ (𝜑 → ((𝑁 + 1) − 1) = 𝑁) |
| 12 | 11 | oveq2d 7436 | . . . 4 ⊢ (𝜑 → (1...((𝑁 + 1) − 1)) = (1...𝑁)) |
| 13 | 12 | sumeq1d 15780 | . . 3 ⊢ (𝜑 → Σ𝑘 ∈ (1...((𝑁 + 1) − 1))𝐴 = Σ𝑘 ∈ (1...𝑁)𝐴) |
| 14 | 13 | oveq1d 7435 | . 2 ⊢ (𝜑 → (Σ𝑘 ∈ (1...((𝑁 + 1) − 1))𝐴 + 𝐵) = (Σ𝑘 ∈ (1...𝑁)𝐴 + 𝐵)) |
| 15 | 8, 14 | eqtrd 2800 | 1 ⊢ (𝜑 → Σ𝑘 ∈ (1...(𝑁 + 1))𝐴 = (Σ𝑘 ∈ (1...𝑁)𝐴 + 𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2146 ‘cfv 6541 (class class class)co 7420 ℂcc 11118 1c1 11121 + caddc 11123 − cmin 11461 ℕcn 12253 ℕ0cn0 12524 ℤ≥cuz 12883 ...cfz 13556 Σcsu 15766 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7743 ax-inf2 9618 ax-cnex 11176 ax-resscn 11177 ax-1cn 11178 ax-icn 11179 ax-addcl 11180 ax-addrcl 11181 ax-mulcl 11182 ax-mulrcl 11183 ax-mulcom 11184 ax-addass 11185 ax-mulass 11186 ax-distr 11187 ax-i2m1 11188 ax-1ne0 11189 ax-1rid 11190 ax-rnegex 11191 ax-rrecex 11192 ax-cnre 11193 ax-pre-lttri 11194 ax-pre-lttrn 11195 ax-pre-ltadd 11196 ax-pre-mulgt0 11197 ax-pre-sup 11198 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-se 5617 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-isom 6550 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7870 df-1st 7993 df-2nd 7994 df-frecs 8285 df-wrecs 8316 df-recs 8365 df-rdg 8404 df-1o 8460 df-er 8701 df-en 8951 df-dom 8952 df-sdom 8953 df-fin 8954 df-sup 9410 df-oi 9480 df-card 9942 df-pnf 11265 df-mnf 11266 df-xr 11267 df-ltxr 11268 df-le 11269 df-sub 11463 df-neg 11464 df-div 11892 df-nn 12254 df-2 12323 df-3 12324 df-n0 12525 df-z 12612 df-uz 12884 df-rp 13038 df-fz 13557 df-fzo 13705 df-seq 14061 df-exp 14121 df-hash 14390 df-cj 15179 df-re 15180 df-im 15181 df-sqrt 15315 df-abs 15316 df-clim 15568 df-sum 15767 |
| This theorem is used by: sumcubes 43152 |
| Copyright terms: Public domain | W3C validator |