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Mirrors > Home > MPE Home > Th. List > dsmmval | Structured version Visualization version GIF version |
Description: Value of the module direct sum. (Contributed by Stefan O'Rear, 7-Jan-2015.) |
Ref | Expression |
---|---|
dsmmval.b | ⊢ 𝐵 = {𝑓 ∈ (Base‘(𝑆Xs𝑅)) ∣ {𝑥 ∈ dom 𝑅 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥))} ∈ Fin} |
Ref | Expression |
---|---|
dsmmval | ⊢ (𝑅 ∈ 𝑉 → (𝑆 ⊕m 𝑅) = ((𝑆Xs𝑅) ↾s 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 3448 | . 2 ⊢ (𝑅 ∈ 𝑉 → 𝑅 ∈ V) | |
2 | oveq12 7277 | . . . . 5 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (𝑠Xs𝑟) = (𝑆Xs𝑅)) | |
3 | eqid 2739 | . . . . . . . . 9 ⊢ (𝑠Xs𝑟) = (𝑠Xs𝑟) | |
4 | vex 3434 | . . . . . . . . . 10 ⊢ 𝑠 ∈ V | |
5 | 4 | a1i 11 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → 𝑠 ∈ V) |
6 | vex 3434 | . . . . . . . . . 10 ⊢ 𝑟 ∈ V | |
7 | 6 | a1i 11 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → 𝑟 ∈ V) |
8 | eqid 2739 | . . . . . . . . 9 ⊢ (Base‘(𝑠Xs𝑟)) = (Base‘(𝑠Xs𝑟)) | |
9 | eqidd 2740 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → dom 𝑟 = dom 𝑟) | |
10 | 3, 5, 7, 8, 9 | prdsbas 17149 | . . . . . . . 8 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (Base‘(𝑠Xs𝑟)) = X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥))) |
11 | 2 | fveq2d 6772 | . . . . . . . 8 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (Base‘(𝑠Xs𝑟)) = (Base‘(𝑆Xs𝑅))) |
12 | 10, 11 | eqtr3d 2781 | . . . . . . 7 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥)) = (Base‘(𝑆Xs𝑅))) |
13 | simpr 484 | . . . . . . . . . 10 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → 𝑟 = 𝑅) | |
14 | 13 | dmeqd 5811 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → dom 𝑟 = dom 𝑅) |
15 | 13 | fveq1d 6770 | . . . . . . . . . . 11 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (𝑟‘𝑥) = (𝑅‘𝑥)) |
16 | 15 | fveq2d 6772 | . . . . . . . . . 10 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (0g‘(𝑟‘𝑥)) = (0g‘(𝑅‘𝑥))) |
17 | 16 | neeq2d 3005 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → ((𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥)) ↔ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥)))) |
18 | 14, 17 | rabeqbidv 3418 | . . . . . . . 8 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → {𝑥 ∈ dom 𝑟 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥))} = {𝑥 ∈ dom 𝑅 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥))}) |
19 | 18 | eleq1d 2824 | . . . . . . 7 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → ({𝑥 ∈ dom 𝑟 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥))} ∈ Fin ↔ {𝑥 ∈ dom 𝑅 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥))} ∈ Fin)) |
20 | 12, 19 | rabeqbidv 3418 | . . . . . 6 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → {𝑓 ∈ X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥)) ∣ {𝑥 ∈ dom 𝑟 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥))} ∈ Fin} = {𝑓 ∈ (Base‘(𝑆Xs𝑅)) ∣ {𝑥 ∈ dom 𝑅 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥))} ∈ Fin}) |
21 | dsmmval.b | . . . . . 6 ⊢ 𝐵 = {𝑓 ∈ (Base‘(𝑆Xs𝑅)) ∣ {𝑥 ∈ dom 𝑅 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥))} ∈ Fin} | |
22 | 20, 21 | eqtr4di 2797 | . . . . 5 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → {𝑓 ∈ X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥)) ∣ {𝑥 ∈ dom 𝑟 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥))} ∈ Fin} = 𝐵) |
23 | 2, 22 | oveq12d 7286 | . . . 4 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → ((𝑠Xs𝑟) ↾s {𝑓 ∈ X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥)) ∣ {𝑥 ∈ dom 𝑟 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥))} ∈ Fin}) = ((𝑆Xs𝑅) ↾s 𝐵)) |
24 | df-dsmm 20920 | . . . 4 ⊢ ⊕m = (𝑠 ∈ V, 𝑟 ∈ V ↦ ((𝑠Xs𝑟) ↾s {𝑓 ∈ X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥)) ∣ {𝑥 ∈ dom 𝑟 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥))} ∈ Fin})) | |
25 | ovex 7301 | . . . 4 ⊢ ((𝑆Xs𝑅) ↾s 𝐵) ∈ V | |
26 | 23, 24, 25 | ovmpoa 7419 | . . 3 ⊢ ((𝑆 ∈ V ∧ 𝑅 ∈ V) → (𝑆 ⊕m 𝑅) = ((𝑆Xs𝑅) ↾s 𝐵)) |
27 | reldmdsmm 20921 | . . . . . . 7 ⊢ Rel dom ⊕m | |
28 | 27 | ovprc1 7307 | . . . . . 6 ⊢ (¬ 𝑆 ∈ V → (𝑆 ⊕m 𝑅) = ∅) |
29 | ress0 16934 | . . . . . 6 ⊢ (∅ ↾s 𝐵) = ∅ | |
30 | 28, 29 | eqtr4di 2797 | . . . . 5 ⊢ (¬ 𝑆 ∈ V → (𝑆 ⊕m 𝑅) = (∅ ↾s 𝐵)) |
31 | reldmprds 17140 | . . . . . . 7 ⊢ Rel dom Xs | |
32 | 31 | ovprc1 7307 | . . . . . 6 ⊢ (¬ 𝑆 ∈ V → (𝑆Xs𝑅) = ∅) |
33 | 32 | oveq1d 7283 | . . . . 5 ⊢ (¬ 𝑆 ∈ V → ((𝑆Xs𝑅) ↾s 𝐵) = (∅ ↾s 𝐵)) |
34 | 30, 33 | eqtr4d 2782 | . . . 4 ⊢ (¬ 𝑆 ∈ V → (𝑆 ⊕m 𝑅) = ((𝑆Xs𝑅) ↾s 𝐵)) |
35 | 34 | adantr 480 | . . 3 ⊢ ((¬ 𝑆 ∈ V ∧ 𝑅 ∈ V) → (𝑆 ⊕m 𝑅) = ((𝑆Xs𝑅) ↾s 𝐵)) |
36 | 26, 35 | pm2.61ian 808 | . 2 ⊢ (𝑅 ∈ V → (𝑆 ⊕m 𝑅) = ((𝑆Xs𝑅) ↾s 𝐵)) |
37 | 1, 36 | syl 17 | 1 ⊢ (𝑅 ∈ 𝑉 → (𝑆 ⊕m 𝑅) = ((𝑆Xs𝑅) ↾s 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2109 ≠ wne 2944 {crab 3069 Vcvv 3430 ∅c0 4261 dom cdm 5588 ‘cfv 6430 (class class class)co 7268 Xcixp 8659 Fincfn 8707 Basecbs 16893 ↾s cress 16922 0gc0g 17131 Xscprds 17137 ⊕m cdsmm 20919 |
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-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-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-iun 4931 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-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-riota 7225 df-ov 7271 df-oprab 7272 df-mpo 7273 df-om 7701 df-1st 7817 df-2nd 7818 df-frecs 8081 df-wrecs 8112 df-recs 8186 df-rdg 8225 df-1o 8281 df-er 8472 df-map 8591 df-ixp 8660 df-en 8708 df-dom 8709 df-sdom 8710 df-fin 8711 df-sup 9162 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-3 12020 df-4 12021 df-5 12022 df-6 12023 df-7 12024 df-8 12025 df-9 12026 df-n0 12217 df-z 12303 df-dec 12420 df-uz 12565 df-fz 13222 df-struct 16829 df-slot 16864 df-ndx 16876 df-base 16894 df-ress 16923 df-plusg 16956 df-mulr 16957 df-sca 16959 df-vsca 16960 df-ip 16961 df-tset 16962 df-ple 16963 df-ds 16965 df-hom 16967 df-cco 16968 df-prds 17139 df-dsmm 20920 |
This theorem is referenced by: dsmmbase 20923 dsmmval2 20924 |
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