Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
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 3440 | . 2 ⊢ (𝑅 ∈ 𝑉 → 𝑅 ∈ V) | |
2 | oveq12 7264 | . . . . 5 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (𝑠Xs𝑟) = (𝑆Xs𝑅)) | |
3 | eqid 2738 | . . . . . . . . 9 ⊢ (𝑠Xs𝑟) = (𝑠Xs𝑟) | |
4 | vex 3426 | . . . . . . . . . 10 ⊢ 𝑠 ∈ V | |
5 | 4 | a1i 11 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → 𝑠 ∈ V) |
6 | vex 3426 | . . . . . . . . . 10 ⊢ 𝑟 ∈ V | |
7 | 6 | a1i 11 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → 𝑟 ∈ V) |
8 | eqid 2738 | . . . . . . . . 9 ⊢ (Base‘(𝑠Xs𝑟)) = (Base‘(𝑠Xs𝑟)) | |
9 | eqidd 2739 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → dom 𝑟 = dom 𝑟) | |
10 | 3, 5, 7, 8, 9 | prdsbas 17085 | . . . . . . . 8 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (Base‘(𝑠Xs𝑟)) = X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥))) |
11 | 2 | fveq2d 6760 | . . . . . . . 8 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (Base‘(𝑠Xs𝑟)) = (Base‘(𝑆Xs𝑅))) |
12 | 10, 11 | eqtr3d 2780 | . . . . . . 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 5803 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → dom 𝑟 = dom 𝑅) |
15 | 13 | fveq1d 6758 | . . . . . . . . . . 11 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (𝑟‘𝑥) = (𝑅‘𝑥)) |
16 | 15 | fveq2d 6760 | . . . . . . . . . 10 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → (0g‘(𝑟‘𝑥)) = (0g‘(𝑅‘𝑥))) |
17 | 16 | neeq2d 3003 | . . . . . . . . 9 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → ((𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥)) ↔ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥)))) |
18 | 14, 17 | rabeqbidv 3410 | . . . . . . . 8 ⊢ ((𝑠 = 𝑆 ∧ 𝑟 = 𝑅) → {𝑥 ∈ dom 𝑟 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑟‘𝑥))} = {𝑥 ∈ dom 𝑅 ∣ (𝑓‘𝑥) ≠ (0g‘(𝑅‘𝑥))}) |
19 | 18 | eleq1d 2823 | . . . . . . 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 3410 | . . . . . 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 7273 | . . . 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 20849 | . . . 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 7288 | . . . 4 ⊢ ((𝑆Xs𝑅) ↾s 𝐵) ∈ V | |
26 | 23, 24, 25 | ovmpoa 7406 | . . 3 ⊢ ((𝑆 ∈ V ∧ 𝑅 ∈ V) → (𝑆 ⊕m 𝑅) = ((𝑆Xs𝑅) ↾s 𝐵)) |
27 | reldmdsmm 20850 | . . . . . . 7 ⊢ Rel dom ⊕m | |
28 | 27 | ovprc1 7294 | . . . . . 6 ⊢ (¬ 𝑆 ∈ V → (𝑆 ⊕m 𝑅) = ∅) |
29 | ress0 16879 | . . . . . 6 ⊢ (∅ ↾s 𝐵) = ∅ | |
30 | 28, 29 | eqtr4di 2797 | . . . . 5 ⊢ (¬ 𝑆 ∈ V → (𝑆 ⊕m 𝑅) = (∅ ↾s 𝐵)) |
31 | reldmprds 17076 | . . . . . . 7 ⊢ Rel dom Xs | |
32 | 31 | ovprc1 7294 | . . . . . 6 ⊢ (¬ 𝑆 ∈ V → (𝑆Xs𝑅) = ∅) |
33 | 32 | oveq1d 7270 | . . . . 5 ⊢ (¬ 𝑆 ∈ V → ((𝑆Xs𝑅) ↾s 𝐵) = (∅ ↾s 𝐵)) |
34 | 30, 33 | eqtr4d 2781 | . . . 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 1539 ∈ wcel 2108 ≠ wne 2942 {crab 3067 Vcvv 3422 ∅c0 4253 dom cdm 5580 ‘cfv 6418 (class class class)co 7255 Xcixp 8643 Fincfn 8691 Basecbs 16840 ↾s cress 16867 0gc0g 17067 Xscprds 17073 ⊕m cdsmm 20848 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-map 8575 df-ixp 8644 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-sup 9131 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-5 11969 df-6 11970 df-7 11971 df-8 11972 df-9 11973 df-n0 12164 df-z 12250 df-dec 12367 df-uz 12512 df-fz 13169 df-struct 16776 df-slot 16811 df-ndx 16823 df-base 16841 df-ress 16868 df-plusg 16901 df-mulr 16902 df-sca 16904 df-vsca 16905 df-ip 16906 df-tset 16907 df-ple 16908 df-ds 16910 df-hom 16912 df-cco 16913 df-prds 17075 df-dsmm 20849 |
This theorem is referenced by: dsmmbase 20852 dsmmval2 20853 |
Copyright terms: Public domain | W3C validator |