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| Mirrors > Home > MPE Home > Th. List > gsummptfzsplit | Structured version Visualization version GIF version | ||
| Description: Split a group sum expressed as mapping with a finite set of sequential integers as domain into two parts, extracting a singleton from the right. (Contributed by AV, 25-Oct-2019.) |
| Ref | Expression |
|---|---|
| gsummptfzsplit.b | ⊢ 𝐵 = (Base‘𝐺) |
| gsummptfzsplit.p | ⊢ + = (+g‘𝐺) |
| gsummptfzsplit.g | ⊢ (𝜑 → 𝐺 ∈ CMnd) |
| gsummptfzsplit.n | ⊢ (𝜑 → 𝑁 ∈ ℕ0) |
| gsummptfzsplit.y | ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑌 ∈ 𝐵) |
| Ref | Expression |
|---|---|
| gsummptfzsplit | ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (0...(𝑁 + 1)) ↦ 𝑌)) = ((𝐺 Σg (𝑘 ∈ (0...𝑁) ↦ 𝑌)) + (𝐺 Σg (𝑘 ∈ {(𝑁 + 1)} ↦ 𝑌)))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | gsummptfzsplit.b | . 2 ⊢ 𝐵 = (Base‘𝐺) | |
| 2 | gsummptfzsplit.p | . 2 ⊢ + = (+g‘𝐺) | |
| 3 | gsummptfzsplit.g | . 2 ⊢ (𝜑 → 𝐺 ∈ CMnd) | |
| 4 | fzfid 14119 | . 2 ⊢ (𝜑 → (0...(𝑁 + 1)) ∈ Fin) | |
| 5 | gsummptfzsplit.y | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ (0...(𝑁 + 1))) → 𝑌 ∈ 𝐵) | |
| 6 | fzp1disj 13720 | . . 3 ⊢ ((0...𝑁) ∩ {(𝑁 + 1)}) = ∅ | |
| 7 | 6 | a1i 11 | . 2 ⊢ (𝜑 → ((0...𝑁) ∩ {(𝑁 + 1)}) = ∅) |
| 8 | gsummptfzsplit.n | . . . 4 ⊢ (𝜑 → 𝑁 ∈ ℕ0) | |
| 9 | elnn0uz 13009 | . . . 4 ⊢ (𝑁 ∈ ℕ0 ↔ 𝑁 ∈ (ℤ≥‘0)) | |
| 10 | 8, 9 | sylib 221 | . . 3 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘0)) |
| 11 | fzsuc 13708 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘0) → (0...(𝑁 + 1)) = ((0...𝑁) ∪ {(𝑁 + 1)})) | |
| 12 | 10, 11 | syl 18 | . 2 ⊢ (𝜑 → (0...(𝑁 + 1)) = ((0...𝑁) ∪ {(𝑁 + 1)})) |
| 13 | 1, 2, 3, 4, 5, 7, 12 | gsummptfidmsplit 20149 | 1 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (0...(𝑁 + 1)) ↦ 𝑌)) = ((𝐺 Σg (𝑘 ∈ (0...𝑁) ↦ 𝑌)) + (𝐺 Σg (𝑘 ∈ {(𝑁 + 1)} ↦ 𝑌)))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ∩ cin 4089 ∪ cun 4149 ∅c0 4278 {csn 4584 ↦ cmpt 5185 ‘cfv 6538 (class class class)co 7420 0cc0 11203 1c1 11204 + caddc 11206 ℕ0cn0 12609 ℤ≥cuz 12968 ...cfz 13642 Basecbs 17392 +gcplusg 17433 Σg cgsu 17616 CMndccmn 19999 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11259 ax-resscn 11260 ax-1cn 11261 ax-icn 11262 ax-addcl 11263 ax-addrcl 11264 ax-mulcl 11265 ax-mulrcl 11266 ax-mulcom 11267 ax-addass 11268 ax-mulass 11269 ax-distr 11270 ax-i2m1 11271 ax-1ne0 11272 ax-1rid 11273 ax-rnegex 11274 ax-rrecex 11275 ax-cnre 11276 ax-pre-lttri 11277 ax-pre-lttrn 11278 ax-pre-ltadd 11279 ax-pre-mulgt0 11280 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-iin 4953 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-se 5604 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 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-of 7693 df-om 7878 df-1st 8001 df-2nd 8002 df-supp 8180 df-frecs 8302 df-wrecs 8333 df-recs 8382 df-rdg 8421 df-1o 8479 df-2o 8480 df-er 8720 df-en 8977 df-dom 8978 df-sdom 8979 df-fin 8980 df-fsupp 9357 df-oi 9507 df-card 10023 df-pnf 11348 df-mnf 11349 df-xr 11350 df-ltxr 11351 df-le 11352 df-sub 11546 df-neg 11547 df-nn 12339 df-2 12408 df-n0 12610 df-z 12697 df-uz 12969 df-fz 13643 df-fzo 13792 df-seq 14148 df-hash 14478 df-sets 17347 df-slot 17365 df-ndx 17377 df-base 17393 df-ress 17414 df-plusg 17446 df-0g 17617 df-gsum 17618 df-mre 17761 df-mrc 17762 df-acs 17764 df-mgm 18821 df-sgrp 18913 df-mnd 18929 df-submnd 18984 df-cntz 19536 df-cmn 20001 |
| This theorem is used by: srgbinomlem3 20459 freshmansdream 21885 pmatcollpw3fi1lem1 23109 chfacfscmulgsum 23183 chfacfpmmulgsum 23187 cpmadugsumlemF 23199 aks6d1c1 43259 |
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