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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 9099 | . . . 4 ⊢ {𝑀} ∈ Fin | |
| 6 | unfi 9214 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ {𝑀} ∈ Fin) → (𝐴 ∪ {𝑀}) ∈ Fin) | |
| 7 | 4, 5, 6 | sylancl 598 | . . 3 ⊢ (𝜑 → (𝐴 ∪ {𝑀}) ∈ Fin) |
| 8 | elun 4155 | . . . 4 ⊢ (𝑘 ∈ (𝐴 ∪ {𝑀}) ↔ (𝑘 ∈ 𝐴 ∨ 𝑘 ∈ {𝑀})) | |
| 9 | gsumunsnd.f | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝑋 ∈ 𝐵) | |
| 10 | elsni 4601 | . . . . . . 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 2864 | . . . . 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 4672 | . . . 4 ⊢ ((𝐴 ∩ {𝑀}) = ∅ ↔ ¬ 𝑀 ∈ 𝐴) | |
| 20 | 18, 19 | sylibr 237 | . . 3 ⊢ (𝜑 → (𝐴 ∩ {𝑀}) = ∅) |
| 21 | eqidd 2764 | . . 3 ⊢ (𝜑 → (𝐴 ∪ {𝑀}) = (𝐴 ∪ {𝑀})) | |
| 22 | 1, 2, 3, 7, 17, 20, 21 | gsummptfidmsplit 20174 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (𝐴 ∪ {𝑀}) ↦ 𝑋)) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋)))) |
| 23 | cmnmnd 20041 | . . . . 5 ⊢ (𝐺 ∈ CMnd → 𝐺 ∈ Mnd) | |
| 24 | 3, 23 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐺 ∈ Mnd) |
| 25 | gsumunsnd.m | . . . 4 ⊢ (𝜑 → 𝑀 ∈ 𝑉) | |
| 26 | nfv 1949 | . . . 4 ⊢ Ⅎ𝑘𝜑 | |
| 27 | gsumunsnfd.0 | . . . 4 ⊢ Ⅎ𝑘𝑌 | |
| 28 | 1, 24, 25, 13, 11, 26, 27 | gsumsnfd 20195 | . . 3 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋)) = 𝑌) |
| 29 | 28 | oveq2d 7459 | . 2 ⊢ (𝜑 → ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋))) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + 𝑌)) |
| 30 | 22, 29 | eqtrd 2798 | 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 1570 ∈ wcel 2147 Ⅎwnfc 2911 ∩ cin 4092 ∪ cun 4152 ∅c0 4281 {csn 4588 ↦ cmpt 5189 ‘cfv 6558 (class class class)co 7443 Fincfn 9001 Basecbs 17416 +gcplusg 17457 Σg cgsu 17640 Mndcmnd 18952 CMndccmn 20024 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-cnex 11283 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-int 4911 df-iun 4956 df-iin 4957 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6322 df-ord 6383 df-on 6384 df-lim 6385 df-suc 6386 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-isom 6567 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-of 7717 df-om 7902 df-1st 8025 df-2nd 8026 df-supp 8205 df-frecs 8327 df-wrecs 8358 df-recs 8407 df-rdg 8446 df-1o 8504 df-2o 8505 df-er 8745 df-en 9002 df-dom 9003 df-sdom 9004 df-fin 9005 df-fsupp 9382 df-oi 9531 df-card 10047 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 df-nn 12363 df-2 12432 df-n0 12634 df-z 12721 df-uz 12993 df-fz 13667 df-fzo 13816 df-seq 14172 df-hash 14502 df-sets 17371 df-slot 17389 df-ndx 17401 df-base 17417 df-ress 17438 df-plusg 17470 df-0g 17641 df-gsum 17642 df-mre 17785 df-mrc 17786 df-acs 17788 df-mgm 18845 df-sgrp 18937 df-mnd 18953 df-submnd 19008 df-mulg 19307 df-cntz 19561 df-cmn 20026 |
| This theorem is used by: gsumunsnd 20202 gsumunsnf 20203 |
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