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Theorem psrplusg 20760
Description: The addition operation of the multivariate power series structure. (Contributed by Mario Carneiro, 28-Dec-2014.) (Revised by Mario Carneiro, 2-Oct-2015.)
Hypotheses
Ref Expression
psrplusg.s 𝑆 = (𝐼 mPwSer 𝑅)
psrplusg.b 𝐵 = (Base‘𝑆)
psrplusg.a + = (+g𝑅)
psrplusg.p = (+g𝑆)
Assertion
Ref Expression
psrplusg = ( ∘f + ↾ (𝐵 × 𝐵))

Proof of Theorem psrplusg
Dummy variables 𝑓 𝑔 𝑘 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 psrplusg.s . . . . 5 𝑆 = (𝐼 mPwSer 𝑅)
2 eqid 2738 . . . . 5 (Base‘𝑅) = (Base‘𝑅)
3 psrplusg.a . . . . 5 + = (+g𝑅)
4 eqid 2738 . . . . 5 (.r𝑅) = (.r𝑅)
5 eqid 2738 . . . . 5 (TopOpen‘𝑅) = (TopOpen‘𝑅)
6 eqid 2738 . . . . 5 { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} = { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
7 psrplusg.b . . . . . 6 𝐵 = (Base‘𝑆)
8 simpl 486 . . . . . 6 ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐼 ∈ V)
91, 2, 6, 7, 8psrbas 20757 . . . . 5 ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐵 = ((Base‘𝑅) ↑m { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}))
10 eqid 2738 . . . . 5 ( ∘f + ↾ (𝐵 × 𝐵)) = ( ∘f + ↾ (𝐵 × 𝐵))
11 eqid 2738 . . . . 5 (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥))))))) = (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))
12 eqid 2738 . . . . 5 (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓)) = (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))
13 eqidd 2739 . . . . 5 ((𝐼 ∈ V ∧ 𝑅 ∈ V) → (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)})) = (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)})))
14 simpr 488 . . . . 5 ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝑅 ∈ V)
151, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 8, 14psrval 20728 . . . 4 ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝑆 = ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)}))⟩}))
1615fveq2d 6678 . . 3 ((𝐼 ∈ V ∧ 𝑅 ∈ V) → (+g𝑆) = (+g‘({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)}))⟩})))
17 psrplusg.p . . 3 = (+g𝑆)
187fvexi 6688 . . . . 5 𝐵 ∈ V
1918, 18xpex 7494 . . . 4 (𝐵 × 𝐵) ∈ V
20 ofexg 7429 . . . 4 ((𝐵 × 𝐵) ∈ V → ( ∘f + ↾ (𝐵 × 𝐵)) ∈ V)
21 psrvalstr 20729 . . . . 5 ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)}))⟩}) Struct ⟨1, 9⟩
22 plusgid 16699 . . . . 5 +g = Slot (+g‘ndx)
23 snsstp2 4705 . . . . . 6 {⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩} ⊆ {⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩}
24 ssun1 4062 . . . . . 6 {⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ⊆ ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)}))⟩})
2523, 24sstri 3886 . . . . 5 {⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩} ⊆ ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)}))⟩})
2621, 22, 25strfv 16634 . . . 4 (( ∘f + ↾ (𝐵 × 𝐵)) ∈ V → ( ∘f + ↾ (𝐵 × 𝐵)) = (+g‘({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)}))⟩})))
2719, 20, 26mp2b 10 . . 3 ( ∘f + ↾ (𝐵 × 𝐵)) = (+g‘({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), ( ∘f + ↾ (𝐵 × 𝐵))⟩, ⟨(.r‘ndx), (𝑓𝐵, 𝑔𝐵 ↦ (𝑘 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} ∣ 𝑦r𝑘} ↦ ((𝑓𝑥)(.r𝑅)(𝑔‘(𝑘f𝑥)))))))⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ (Base‘𝑅), 𝑓𝐵 ↦ (({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {𝑥}) ∘f (.r𝑅)𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘({ ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin} × {(TopOpen‘𝑅)}))⟩}))
2816, 17, 273eqtr4g 2798 . 2 ((𝐼 ∈ V ∧ 𝑅 ∈ V) → = ( ∘f + ↾ (𝐵 × 𝐵)))
29 reldmpsr 20727 . . . . . . 7 Rel dom mPwSer
3029ovprc 7208 . . . . . 6 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐼 mPwSer 𝑅) = ∅)
311, 30syl5eq 2785 . . . . 5 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝑆 = ∅)
3231fveq2d 6678 . . . 4 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (+g𝑆) = (+g‘∅))
3322str0 16638 . . . 4 ∅ = (+g‘∅)
3432, 17, 333eqtr4g 2798 . . 3 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → = ∅)
3531fveq2d 6678 . . . . . . . 8 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (Base‘𝑆) = (Base‘∅))
36 base0 16639 . . . . . . . 8 ∅ = (Base‘∅)
3735, 7, 363eqtr4g 2798 . . . . . . 7 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐵 = ∅)
3837xpeq2d 5555 . . . . . 6 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐵 × 𝐵) = (𝐵 × ∅))
39 xp0 5990 . . . . . 6 (𝐵 × ∅) = ∅
4038, 39eqtrdi 2789 . . . . 5 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐵 × 𝐵) = ∅)
4140reseq2d 5825 . . . 4 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ( ∘f + ↾ (𝐵 × 𝐵)) = ( ∘f + ↾ ∅))
42 res0 5829 . . . 4 ( ∘f + ↾ ∅) = ∅
4341, 42eqtrdi 2789 . . 3 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ( ∘f + ↾ (𝐵 × 𝐵)) = ∅)
4434, 43eqtr4d 2776 . 2 (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → = ( ∘f + ↾ (𝐵 × 𝐵)))
4528, 44pm2.61i 185 1 = ( ∘f + ↾ (𝐵 × 𝐵))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wa 399   = wceq 1542  wcel 2114  {crab 3057  Vcvv 3398  cun 3841  c0 4211  {csn 4516  {ctp 4520  cop 4522   class class class wbr 5030  cmpt 5110   × cxp 5523  ccnv 5524  cres 5527  cima 5528  cfv 6339  (class class class)co 7170  cmpo 7172  f cof 7423  r cofr 7424  m cmap 8437  Fincfn 8555  1c1 10616  cle 10754  cmin 10948  cn 11716  9c9 11778  0cn0 11976  ndxcnx 16583  Basecbs 16586  +gcplusg 16668  .rcmulr 16669  Scalarcsca 16671   ·𝑠 cvsca 16672  TopSetcts 16674  TopOpenctopn 16798  tcpt 16815   Σg cgsu 16817   mPwSer cmps 20717
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1975  ax-7 2020  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2162  ax-12 2179  ax-ext 2710  ax-rep 5154  ax-sep 5167  ax-nul 5174  ax-pow 5232  ax-pr 5296  ax-un 7479  ax-cnex 10671  ax-resscn 10672  ax-1cn 10673  ax-icn 10674  ax-addcl 10675  ax-addrcl 10676  ax-mulcl 10677  ax-mulrcl 10678  ax-mulcom 10679  ax-addass 10680  ax-mulass 10681  ax-distr 10682  ax-i2m1 10683  ax-1ne0 10684  ax-1rid 10685  ax-rnegex 10686  ax-rrecex 10687  ax-cnre 10688  ax-pre-lttri 10689  ax-pre-lttrn 10690  ax-pre-ltadd 10691  ax-pre-mulgt0 10692
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 847  df-3or 1089  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1787  df-nf 1791  df-sb 2075  df-mo 2540  df-eu 2570  df-clab 2717  df-cleq 2730  df-clel 2811  df-nfc 2881  df-ne 2935  df-nel 3039  df-ral 3058  df-rex 3059  df-reu 3060  df-rab 3062  df-v 3400  df-sbc 3681  df-csb 3791  df-dif 3846  df-un 3848  df-in 3850  df-ss 3860  df-pss 3862  df-nul 4212  df-if 4415  df-pw 4490  df-sn 4517  df-pr 4519  df-tp 4521  df-op 4523  df-uni 4797  df-iun 4883  df-br 5031  df-opab 5093  df-mpt 5111  df-tr 5137  df-id 5429  df-eprel 5434  df-po 5442  df-so 5443  df-fr 5483  df-we 5485  df-xp 5531  df-rel 5532  df-cnv 5533  df-co 5534  df-dm 5535  df-rn 5536  df-res 5537  df-ima 5538  df-pred 6129  df-ord 6175  df-on 6176  df-lim 6177  df-suc 6178  df-iota 6297  df-fun 6341  df-fn 6342  df-f 6343  df-f1 6344  df-fo 6345  df-f1o 6346  df-fv 6347  df-riota 7127  df-ov 7173  df-oprab 7174  df-mpo 7175  df-of 7425  df-om 7600  df-1st 7714  df-2nd 7715  df-supp 7857  df-wrecs 7976  df-recs 8037  df-rdg 8075  df-1o 8131  df-er 8320  df-map 8439  df-en 8556  df-dom 8557  df-sdom 8558  df-fin 8559  df-fsupp 8907  df-pnf 10755  df-mnf 10756  df-xr 10757  df-ltxr 10758  df-le 10759  df-sub 10950  df-neg 10951  df-nn 11717  df-2 11779  df-3 11780  df-4 11781  df-5 11782  df-6 11783  df-7 11784  df-8 11785  df-9 11786  df-n0 11977  df-z 12063  df-uz 12325  df-fz 12982  df-struct 16588  df-ndx 16589  df-slot 16590  df-base 16592  df-plusg 16681  df-mulr 16682  df-sca 16684  df-vsca 16685  df-tset 16687  df-psr 20722
This theorem is referenced by:  psradd  20761  psrmulr  20763  psrsca  20768  psrvscafval  20769  psrplusgpropd  21011  ply1plusgfvi  21017
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