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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 8804 | . . . 4 ⊢ {𝑀} ∈ Fin | |
6 | unfi 8920 | . . . 4 ⊢ ((𝐴 ∈ Fin ∧ {𝑀} ∈ Fin) → (𝐴 ∪ {𝑀}) ∈ Fin) | |
7 | 4, 5, 6 | sylancl 585 | . . 3 ⊢ (𝜑 → (𝐴 ∪ {𝑀}) ∈ Fin) |
8 | elun 4087 | . . . 4 ⊢ (𝑘 ∈ (𝐴 ∪ {𝑀}) ↔ (𝑘 ∈ 𝐴 ∨ 𝑘 ∈ {𝑀})) | |
9 | gsumunsnd.f | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝑋 ∈ 𝐵) | |
10 | elsni 4583 | . . . . . . 7 ⊢ (𝑘 ∈ {𝑀} → 𝑘 = 𝑀) | |
11 | gsumunsnd.s | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 = 𝑀) → 𝑋 = 𝑌) | |
12 | 10, 11 | sylan2 592 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ {𝑀}) → 𝑋 = 𝑌) |
13 | gsumunsnd.y | . . . . . . 7 ⊢ (𝜑 → 𝑌 ∈ 𝐵) | |
14 | 13 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ {𝑀}) → 𝑌 ∈ 𝐵) |
15 | 12, 14 | eqeltrd 2840 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ {𝑀}) → 𝑋 ∈ 𝐵) |
16 | 9, 15 | jaodan 954 | . . . 4 ⊢ ((𝜑 ∧ (𝑘 ∈ 𝐴 ∨ 𝑘 ∈ {𝑀})) → 𝑋 ∈ 𝐵) |
17 | 8, 16 | sylan2b 593 | . . 3 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐴 ∪ {𝑀})) → 𝑋 ∈ 𝐵) |
18 | gsumunsnd.d | . . . 4 ⊢ (𝜑 → ¬ 𝑀 ∈ 𝐴) | |
19 | disjsn 4652 | . . . 4 ⊢ ((𝐴 ∩ {𝑀}) = ∅ ↔ ¬ 𝑀 ∈ 𝐴) | |
20 | 18, 19 | sylibr 233 | . . 3 ⊢ (𝜑 → (𝐴 ∩ {𝑀}) = ∅) |
21 | eqidd 2740 | . . 3 ⊢ (𝜑 → (𝐴 ∪ {𝑀}) = (𝐴 ∪ {𝑀})) | |
22 | 1, 2, 3, 7, 17, 20, 21 | gsummptfidmsplit 19512 | . 2 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (𝐴 ∪ {𝑀}) ↦ 𝑋)) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋)))) |
23 | cmnmnd 19383 | . . . . 5 ⊢ (𝐺 ∈ CMnd → 𝐺 ∈ Mnd) | |
24 | 3, 23 | syl 17 | . . . 4 ⊢ (𝜑 → 𝐺 ∈ Mnd) |
25 | gsumunsnd.m | . . . 4 ⊢ (𝜑 → 𝑀 ∈ 𝑉) | |
26 | nfv 1920 | . . . 4 ⊢ Ⅎ𝑘𝜑 | |
27 | gsumunsnfd.0 | . . . 4 ⊢ Ⅎ𝑘𝑌 | |
28 | 1, 24, 25, 13, 11, 26, 27 | gsumsnfd 19533 | . . 3 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋)) = 𝑌) |
29 | 28 | oveq2d 7284 | . 2 ⊢ (𝜑 → ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + (𝐺 Σg (𝑘 ∈ {𝑀} ↦ 𝑋))) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + 𝑌)) |
30 | 22, 29 | eqtrd 2779 | 1 ⊢ (𝜑 → (𝐺 Σg (𝑘 ∈ (𝐴 ∪ {𝑀}) ↦ 𝑋)) = ((𝐺 Σg (𝑘 ∈ 𝐴 ↦ 𝑋)) + 𝑌)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∨ wo 843 = wceq 1541 ∈ wcel 2109 Ⅎwnfc 2888 ∪ cun 3889 ∩ cin 3890 ∅c0 4261 {csn 4566 ↦ cmpt 5161 ‘cfv 6430 (class class class)co 7268 Fincfn 8707 Basecbs 16893 +gcplusg 16943 Σg cgsu 17132 Mndcmnd 18366 CMndccmn 19367 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 ax-cnex 10911 ax-resscn 10912 ax-1cn 10913 ax-icn 10914 ax-addcl 10915 ax-addrcl 10916 ax-mulcl 10917 ax-mulrcl 10918 ax-mulcom 10919 ax-addass 10920 ax-mulass 10921 ax-distr 10922 ax-i2m1 10923 ax-1ne0 10924 ax-1rid 10925 ax-rnegex 10926 ax-rrecex 10927 ax-cnre 10928 ax-pre-lttri 10929 ax-pre-lttrn 10930 ax-pre-ltadd 10931 ax-pre-mulgt0 10932 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-nel 3051 df-ral 3070 df-rex 3071 df-reu 3072 df-rmo 3073 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-pss 3910 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4845 df-int 4885 df-iun 4931 df-iin 4932 df-br 5079 df-opab 5141 df-mpt 5162 df-tr 5196 df-id 5488 df-eprel 5494 df-po 5502 df-so 5503 df-fr 5543 df-se 5544 df-we 5545 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-pred 6199 df-ord 6266 df-on 6267 df-lim 6268 df-suc 6269 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-isom 6439 df-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-of 7524 df-om 7701 df-1st 7817 df-2nd 7818 df-supp 7962 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-er 8472 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-fsupp 9090 df-oi 9230 df-card 9681 df-pnf 10995 df-mnf 10996 df-xr 10997 df-ltxr 10998 df-le 10999 df-sub 11190 df-neg 11191 df-nn 11957 df-2 12019 df-n0 12217 df-z 12303 df-uz 12565 df-fz 13222 df-fzo 13365 df-seq 13703 df-hash 14026 df-sets 16846 df-slot 16864 df-ndx 16876 df-base 16894 df-ress 16923 df-plusg 16956 df-0g 17133 df-gsum 17134 df-mre 17276 df-mrc 17277 df-acs 17279 df-mgm 18307 df-sgrp 18356 df-mnd 18367 df-submnd 18412 df-mulg 18682 df-cntz 18904 df-cmn 19369 |
This theorem is referenced by: gsumunsnd 19540 gsumunsnf 19541 |
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