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| Mirrors > Home > MPE Home > Th. List > gsumunsnfd | Structured version Visualization version GIF version | ||
| Description: Append an element to a finite group sum, using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Mario Carneiro, 19-Dec-2014.) (Revised by AV, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| gsumunsnd.b | ⊢ 𝐵 = (Base‘𝐺) |
| gsumunsnd.p | ⊢ + = (+g‘𝐺) |
| gsumunsnd.g | ⊢ (𝜑 → 𝐺 ∈ CMnd) |
| gsumunsnd.a | ⊢ (𝜑 → 𝐴 ∈ Fin) |
| gsumunsnd.f | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝑋 ∈ 𝐵) |
| gsumunsnd.m | ⊢ (𝜑 → 𝑀 ∈ 𝑉) |
| gsumunsnd.d | ⊢ (𝜑 → ¬ 𝑀 ∈ 𝐴) |
| gsumunsnd.y | ⊢ (𝜑 → 𝑌 ∈ 𝐵) |
| gsumunsnd.s | ⊢ ((𝜑 ∧ 𝑘 = 𝑀) → 𝑋 = 𝑌) |
| gsumunsnfd.0 | ⊢ Ⅎ𝑘𝑌 |
| Ref | Expression |
|---|---|
| gsumunsnfd | ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (𝐴 ∪ {𝑀}) ↦ 𝑋)) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + 𝑌)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | gsumunsnd.b | . . 3 ⊢ 𝐵 = (Base‘𝐺) | |
| 2 | gsumunsnd.p | . . 3 ⊢ + = (+g‘𝐺) | |
| 3 | gsumunsnd.g | . . 3 ⊢ (𝜑 → 𝐺 ∈ CMnd) | |
| 4 | gsumunsnd.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 5 | snfi 9074 | . . . 4 ⊢ {𝑀} ∈ Fin | |
| 6 | unfi 9189 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ {𝑀} ∈ Fin) → (𝐴 ∪ {𝑀}) ∈ Fin) | |
| 7 | 4, 5, 6 | sylancl 598 | . . 3 ⊢ (𝜑 → (𝐴 ∪ {𝑀}) ∈ Fin) |
| 8 | elun 4152 | . . . 4 ⊢ (𝑘 ∈ (𝐴 ∪ {𝑀}) ↔ (𝑘 ∈ 𝐴 ∨ 𝑘 ∈ {𝑀})) | |
| 9 | gsumunsnd.f | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝑋 ∈ 𝐵) | |
| 10 | elsni 4597 | . . . . . . 7 ⊢ (𝑘 ∈ {𝑀} → 𝑘 = 𝑀) | |
| 11 | gsumunsnd.s | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 = 𝑀) → 𝑋 = 𝑌) | |
| 12 | 10, 11 | sylan2 605 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ {𝑀}) → 𝑋 = 𝑌) |
| 13 | gsumunsnd.y | . . . . . . 7 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
| 14 | 13 | adantr 486 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ {𝑀}) → 𝑌 ∈ 𝐵) |
| 15 | 12, 14 | eqeltrd 2860 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ {𝑀}) → 𝑋 ∈ 𝐵) |
| 16 | 9, 15 | jaodan 972 | . . . 4 ⊢ ((𝜑 ∧ (𝑘 ∈ 𝐴 ∨ 𝑘 ∈ {𝑀})) → 𝑋 ∈ 𝐵) |
| 17 | 8, 16 | sylan2b 606 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐴 ∪ {𝑀})) → 𝑋 ∈ 𝐵) |
| 18 | gsumunsnd.d | . . . 4 ⊢ (𝜑 → ¬ 𝑀 ∈ 𝐴) | |
| 19 | disjsn 4668 | . . . 4 ⊢ ((𝐴 ∩ {𝑀}) = ∅ ↔ ¬ 𝑀 ∈ 𝐴) | |
| 20 | 18, 19 | sylibr 237 | . . 3 ⊢ (𝜑 → (𝐴 ∩ {𝑀}) = ∅) |
| 21 | eqidd 2761 | . . 3 ⊢ (𝜑 → (𝐴 ∪ {𝑀}) = (𝐴 ∪ {𝑀})) | |
| 22 | 1, 2, 3, 7, 17, 20, 21 | gsummptfidmsplit 20149 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (𝐴 ∪ {𝑀}) ↦ 𝑋)) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋)))) |
| 23 | cmnmnd 20016 | . . . . 5 ⊢ (𝐺 ∈ CMnd → 𝐺 ∈ Mnd) | |
| 24 | 3, 23 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐺 ∈ Mnd) |
| 25 | gsumunsnd.m | . . . 4 ⊢ (𝜑 → 𝑀 ∈ 𝑉) | |
| 26 | nfv 1946 | . . . 4 ⊢ Ⅎ𝑘𝜑 | |
| 27 | gsumunsnfd.0 | . . . 4 ⊢ Ⅎ𝑘𝑌 | |
| 28 | 1, 24, 25, 13, 11, 26, 27 | gsumsnfd 20170 | . . 3 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋)) = 𝑌) |
| 29 | 28 | oveq2d 7436 | . 2 ⊢ (𝜑 → ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋))) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + 𝑌)) |
| 30 | 22, 29 | eqtrd 2795 | 1 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (𝐴 ∪ {𝑀}) ↦ 𝑋)) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + 𝑌)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 ∨ wo 861 = wceq 1569 ∈ wcel 2144 Ⅎwnfc 2907 ∩ cin 4089 ∪ cun 4149 ∅c0 4278 {csn 4584 ↦ cmpt 5185 ‘cfv 6538 (class class class)co 7420 Fincfn 8976 Basecbs 17392 +gcplusg 17433 Σg cgsu 17616 Mndcmnd 18928 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-mulg 19283 df-cntz 19536 df-cmn 20001 |
| This theorem is used by: gsumunsnd 20177 gsumunsnf 20178 |
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