Theorem psrvscafval 21891

Description: The scalar multiplication operation of the multivariate power series structure. (Contributed by Mario Carneiro, 28-Dec-2014.) (Revised by Mario Carneiro, 2-Oct-2015.) (Proof shortened by AV, 2-Nov-2024.)

Hypotheses

Ref	Expression
psrvsca.s	⊢ 𝑆 = (𝐼 mPwSer 𝑅)
psrvsca.n	⊢ ∙ = ( ·𝑠 ‘𝑆)
psrvsca.k	⊢ 𝐾 = (Base‘𝑅)
psrvsca.b	⊢ 𝐵 = (Base‘𝑆)
psrvsca.m	⊢ · = (.r‘𝑅)
psrvsca.d	⊢ 𝐷 = {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}

Assertion

Ref	Expression
psrvscafval	⊢ ∙ = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))

Distinct variable groups:   𝑥,𝑓,𝐵   𝑓,ℎ,𝐼,𝑥   𝑓,𝐾,𝑥   𝐷,𝑓,𝑥   𝑅,𝑓,𝑥   · ,𝑓,𝑥   ∙ ,𝑓,𝑥

Allowed substitution hints:   𝐵(ℎ)   𝐷(ℎ)   𝑅(ℎ)   𝑆(𝑥,𝑓,ℎ)   ∙ (ℎ)   · (ℎ)   𝐾(ℎ)

Proof of Theorem psrvscafval

Dummy variables 𝑔 𝑘 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		psrvsca.s	. . . . 5 ⊢ 𝑆 = (𝐼 mPwSer 𝑅)
2		psrvsca.k	. . . . 5 ⊢ 𝐾 = (Base‘𝑅)
3		eqid 2731	. . . . 5 ⊢ (+g‘𝑅) = (+g‘𝑅)
4		psrvsca.m	. . . . 5 ⊢ · = (.r‘𝑅)
5		eqid 2731	. . . . 5 ⊢ (TopOpen‘𝑅) = (TopOpen‘𝑅)
6		psrvsca.d	. . . . 5 ⊢ 𝐷 = {ℎ ∈ (ℕ0 ↑m 𝐼) ∣ (◡ℎ “ ℕ) ∈ Fin}
7		psrvsca.b	. . . . . 6 ⊢ 𝐵 = (Base‘𝑆)
8		simpl 482	. . . . . 6 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐼 ∈ V)
9	1, 2, 6, 7, 8	psrbas 21876	. . . . 5 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐵 = (𝐾 ↑m 𝐷))
10		eqid 2731	. . . . . 6 ⊢ (+g‘𝑆) = (+g‘𝑆)
11	1, 7, 3, 10	psrplusg 21879	. . . . 5 ⊢ (+g‘𝑆) = ( ∘f (+g‘𝑅) ↾ (𝐵 × 𝐵))
12		eqid 2731	. . . . . 6 ⊢ (.r‘𝑆) = (.r‘𝑆)
13	1, 7, 4, 12, 6	psrmulr 21885	. . . . 5 ⊢ (.r‘𝑆) = (𝑓 ∈ 𝐵, 𝑔 ∈ 𝐵 ↦ (𝑘 ∈ 𝐷 ↦ (𝑅 Σg (𝑥 ∈ {𝑦 ∈ 𝐷 ∣ 𝑦 ∘r ≤ 𝑘} ↦ ((𝑓‘𝑥) · (𝑔‘(𝑘 ∘f − 𝑥)))))))
14		eqid 2731	. . . . 5 ⊢ (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))
15		eqidd 2732	. . . . 5 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → (∏t‘(𝐷 × {(TopOpen‘𝑅)})) = (∏t‘(𝐷 × {(TopOpen‘𝑅)})))
16		simpr 484	. . . . 5 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝑅 ∈ V)
17	1, 2, 3, 4, 5, 6, 9, 11, 13, 14, 15, 8, 16	psrval 21858	. . . 4 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝑆 = ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), (+g‘𝑆)⟩, ⟨(.r‘ndx), (.r‘𝑆)⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩}))
18	17	fveq2d 6832	. . 3 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → ( ·𝑠 ‘𝑆) = ( ·𝑠 ‘({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), (+g‘𝑆)⟩, ⟨(.r‘ndx), (.r‘𝑆)⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩})))
19		psrvsca.n	. . 3 ⊢ ∙ = ( ·𝑠 ‘𝑆)
20	2	fvexi 6842	. . . . 5 ⊢ 𝐾 ∈ V
21	7	fvexi 6842	. . . . 5 ⊢ 𝐵 ∈ V
22	20, 21	mpoex 8017	. . . 4 ⊢ (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) ∈ V
23		psrvalstr 21859	. . . . 5 ⊢ ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), (+g‘𝑆)⟩, ⟨(.r‘ndx), (.r‘𝑆)⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩}) Struct ⟨1, 9⟩
24		vscaid 17230	. . . . 5 ⊢ ·𝑠 = Slot ( ·𝑠 ‘ndx)
25		snsstp2 4768	. . . . . 6 ⊢ {⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩} ⊆ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩}
26		ssun2 4128	. . . . . 6 ⊢ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩} ⊆ ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), (+g‘𝑆)⟩, ⟨(.r‘ndx), (.r‘𝑆)⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩})
27	25, 26	sstri 3939	. . . . 5 ⊢ {⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩} ⊆ ({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), (+g‘𝑆)⟩, ⟨(.r‘ndx), (.r‘𝑆)⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩})
28	23, 24, 27	strfv 17120	. . . 4 ⊢ ((𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) ∈ V → (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) = ( ·𝑠 ‘({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), (+g‘𝑆)⟩, ⟨(.r‘ndx), (.r‘𝑆)⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩})))
29	22, 28	ax-mp 5	. . 3 ⊢ (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) = ( ·𝑠 ‘({⟨(Base‘ndx), 𝐵⟩, ⟨(+g‘ndx), (+g‘𝑆)⟩, ⟨(.r‘ndx), (.r‘𝑆)⟩} ∪ {⟨(Scalar‘ndx), 𝑅⟩, ⟨( ·𝑠 ‘ndx), (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))⟩, ⟨(TopSet‘ndx), (∏t‘(𝐷 × {(TopOpen‘𝑅)}))⟩}))
30	18, 19, 29	3eqtr4g 2791	. 2 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)))
31		eqid 2731	. . . . . 6 ⊢ ∅ = ∅
32		fn0 6618	. . . . . 6 ⊢ (∅ Fn ∅ ↔ ∅ = ∅)
33	31, 32	mpbir 231	. . . . 5 ⊢ ∅ Fn ∅
34		reldmpsr 21857	. . . . . . . . . 10 ⊢ Rel dom mPwSer
35	34	ovprc 7390	. . . . . . . . 9 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐼 mPwSer 𝑅) = ∅)
36	1, 35	eqtrid 2778	. . . . . . . 8 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝑆 = ∅)
37	36	fveq2d 6832	. . . . . . 7 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ( ·𝑠 ‘𝑆) = ( ·𝑠 ‘∅))
38	24	str0 17106	. . . . . . 7 ⊢ ∅ = ( ·𝑠 ‘∅)
39	37, 19, 38	3eqtr4g 2791	. . . . . 6 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ = ∅)
40	34, 1, 7	elbasov 17133	. . . . . . . . . 10 ⊢ (𝑓 ∈ 𝐵 → (𝐼 ∈ V ∧ 𝑅 ∈ V))
41	40	con3i 154	. . . . . . . . 9 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ¬ 𝑓 ∈ 𝐵)
42	41	eq0rdv 4356	. . . . . . . 8 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐵 = ∅)
43	42	xpeq2d 5649	. . . . . . 7 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐾 × 𝐵) = (𝐾 × ∅))
44		xp0 5719	. . . . . . 7 ⊢ (𝐾 × ∅) = ∅
45	43, 44	eqtrdi 2782	. . . . . 6 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐾 × 𝐵) = ∅)
46	39, 45	fneq12d 6582	. . . . 5 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ( ∙ Fn (𝐾 × 𝐵) ↔ ∅ Fn ∅))
47	33, 46	mpbiri 258	. . . 4 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ Fn (𝐾 × 𝐵))
48		fnov 7483	. . . 4 ⊢ ( ∙ Fn (𝐾 × 𝐵) ↔ ∙ = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ (𝑥 ∙ 𝑓)))
49	47, 48	sylib 218	. . 3 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ (𝑥 ∙ 𝑓)))
50	41	pm2.21d 121	. . . . . 6 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝑓 ∈ 𝐵 → ((𝐷 × {𝑥}) ∘f · 𝑓) = (𝑥 ∙ 𝑓)))
51	50	a1d 25	. . . . 5 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝑥 ∈ 𝐾 → (𝑓 ∈ 𝐵 → ((𝐷 × {𝑥}) ∘f · 𝑓) = (𝑥 ∙ 𝑓))))
52	51	3imp 1110	. . . 4 ⊢ ((¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) ∧ 𝑥 ∈ 𝐾 ∧ 𝑓 ∈ 𝐵) → ((𝐷 × {𝑥}) ∘f · 𝑓) = (𝑥 ∙ 𝑓))
53	52	mpoeq3dva 7429	. . 3 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ (𝑥 ∙ 𝑓)))
54	49, 53	eqtr4d 2769	. 2 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)))
55	30, 54	pm2.61i 182	1 ⊢ ∙ = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 395   = wceq 1541   ∈ wcel 2111  {crab 3395  Vcvv 3436   ∪ cun 3895  ∅c0 4282  {csn 4575  {ctp 4579  ⟨cop 4581   × cxp 5617  ^◡ccnv 5618   “ cima 5622   Fn wfn 6482  ‘cfv 6487  (class class class)co 7352   ∈ cmpo 7354   ∘_f cof 7614   ↑_m cmap 8756  Fincfn 8875  1c1 11013  ℕcn 12131  9c9 12193  ℕ₀cn0 12387  ndxcnx 17110  Basecbs 17126  +_gcplusg 17167  ._rcmulr 17168  Scalarcsca 17170   ·_𝑠 cvsca 17171  TopSetcts 17173  TopOpenctopn 17331  ∏_tcpt 17348   mPwSer cmps 21847

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-10 2144  ax-11 2160  ax-12 2180  ax-ext 2703  ax-rep 5219  ax-sep 5236  ax-nul 5246  ax-pow 5305  ax-pr 5372  ax-un 7674  ax-cnex 11068  ax-resscn 11069  ax-1cn 11070  ax-icn 11071  ax-addcl 11072  ax-addrcl 11073  ax-mulcl 11074  ax-mulrcl 11075  ax-mulcom 11076  ax-addass 11077  ax-mulass 11078  ax-distr 11079  ax-i2m1 11080  ax-1ne0 11081  ax-1rid 11082  ax-rnegex 11083  ax-rrecex 11084  ax-cnre 11085  ax-pre-lttri 11086  ax-pre-lttrn 11087  ax-pre-ltadd 11088  ax-pre-mulgt0 11089

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2535  df-eu 2564  df-clab 2710  df-cleq 2723  df-clel 2806  df-nfc 2881  df-ne 2929  df-nel 3033  df-ral 3048  df-rex 3057  df-reu 3347  df-rab 3396  df-v 3438  df-sbc 3737  df-csb 3846  df-dif 3900  df-un 3902  df-in 3904  df-ss 3914  df-pss 3917  df-nul 4283  df-if 4475  df-pw 4551  df-sn 4576  df-pr 4578  df-tp 4580  df-op 4582  df-uni 4859  df-iun 4943  df-br 5094  df-opab 5156  df-mpt 5175  df-tr 5201  df-id 5514  df-eprel 5519  df-po 5527  df-so 5528  df-fr 5572  df-we 5574  df-xp 5625  df-rel 5626  df-cnv 5627  df-co 5628  df-dm 5629  df-rn 5630  df-res 5631  df-ima 5632  df-pred 6254  df-ord 6315  df-on 6316  df-lim 6317  df-suc 6318  df-iota 6443  df-fun 6489  df-fn 6490  df-f 6491  df-f1 6492  df-fo 6493  df-f1o 6494  df-fv 6495  df-riota 7309  df-ov 7355  df-oprab 7356  df-mpo 7357  df-of 7616  df-om 7803  df-1st 7927  df-2nd 7928  df-supp 8097  df-frecs 8217  df-wrecs 8248  df-recs 8297  df-rdg 8335  df-1o 8391  df-er 8628  df-map 8758  df-en 8876  df-dom 8877  df-sdom 8878  df-fin 8879  df-fsupp 9252  df-pnf 11154  df-mnf 11155  df-xr 11156  df-ltxr 11157  df-le 11158  df-sub 11352  df-neg 11353  df-nn 12132  df-2 12194  df-3 12195  df-4 12196  df-5 12197  df-6 12198  df-7 12199  df-8 12200  df-9 12201  df-n0 12388  df-z 12475  df-uz 12739  df-fz 13414  df-struct 17064  df-slot 17099  df-ndx 17111  df-base 17127  df-plusg 17180  df-mulr 17181  df-sca 17183  df-vsca 17184  df-tset 17186  df-psr 21852

This theorem is referenced by:  psrvsca  21892