Theorem psrvscafval 21878

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 2730	. . . . 5 ⊢ (+g‘𝑅) = (+g‘𝑅)
4		psrvsca.m	. . . . 5 ⊢ · = (.r‘𝑅)
5		eqid 2730	. . . . 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 21863	. . . . 5 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐵 = (𝐾 ↑m 𝐷))
10		eqid 2730	. . . . . 6 ⊢ (+g‘𝑆) = (+g‘𝑆)
11	1, 7, 3, 10	psrplusg 21866	. . . . 5 ⊢ (+g‘𝑆) = ( ∘f (+g‘𝑅) ↾ (𝐵 × 𝐵))
12		eqid 2730	. . . . . 6 ⊢ (.r‘𝑆) = (.r‘𝑆)
13	1, 7, 4, 12, 6	psrmulr 21872	. . . . 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 2730	. . . . 5 ⊢ (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓))
15		eqidd 2731	. . . . 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 21845	. . . 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 6821	. . 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 6831	. . . . 5 ⊢ 𝐾 ∈ V
21	7	fvexi 6831	. . . . 5 ⊢ 𝐵 ∈ V
22	20, 21	mpoex 8006	. . . 4 ⊢ (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) ∈ V
23		psrvalstr 21846	. . . . 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 17216	. . . . 5 ⊢ ·𝑠 = Slot ( ·𝑠 ‘ndx)
25		snsstp2 4767	. . . . . 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 4127	. . . . . 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 3942	. . . . 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 17106	. . . 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 2790	. 2 ⊢ ((𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)))
31		eqid 2730	. . . . . 6 ⊢ ∅ = ∅
32		fn0 6608	. . . . . 6 ⊢ (∅ Fn ∅ ↔ ∅ = ∅)
33	31, 32	mpbir 231	. . . . 5 ⊢ ∅ Fn ∅
34		reldmpsr 21844	. . . . . . . . . 10 ⊢ Rel dom mPwSer
35	34	ovprc 7379	. . . . . . . . 9 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐼 mPwSer 𝑅) = ∅)
36	1, 35	eqtrid 2777	. . . . . . . 8 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝑆 = ∅)
37	36	fveq2d 6821	. . . . . . 7 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ( ·𝑠 ‘𝑆) = ( ·𝑠 ‘∅))
38	24	str0 17092	. . . . . . 7 ⊢ ∅ = ( ·𝑠 ‘∅)
39	37, 19, 38	3eqtr4g 2790	. . . . . 6 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ = ∅)
40	34, 1, 7	elbasov 17119	. . . . . . . . . 10 ⊢ (𝑓 ∈ 𝐵 → (𝐼 ∈ V ∧ 𝑅 ∈ V))
41	40	con3i 154	. . . . . . . . 9 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ¬ 𝑓 ∈ 𝐵)
42	41	eq0rdv 4355	. . . . . . . 8 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → 𝐵 = ∅)
43	42	xpeq2d 5644	. . . . . . 7 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐾 × 𝐵) = (𝐾 × ∅))
44		xp0 6102	. . . . . . 7 ⊢ (𝐾 × ∅) = ∅
45	43, 44	eqtrdi 2781	. . . . . 6 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝐾 × 𝐵) = ∅)
46	39, 45	fneq12d 6572	. . . . 5 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ( ∙ Fn (𝐾 × 𝐵) ↔ ∅ Fn ∅))
47	33, 46	mpbiri 258	. . . 4 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → ∙ Fn (𝐾 × 𝐵))
48		fnov 7472	. . . 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 7418	. . 3 ⊢ (¬ (𝐼 ∈ V ∧ 𝑅 ∈ V) → (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ ((𝐷 × {𝑥}) ∘f · 𝑓)) = (𝑥 ∈ 𝐾, 𝑓 ∈ 𝐵 ↦ (𝑥 ∙ 𝑓)))
54	49, 53	eqtr4d 2768	. 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 2110  {crab 3393  Vcvv 3434   ∪ cun 3898  ∅c0 4281  {csn 4574  {ctp 4578  ⟨cop 4580   × cxp 5612  ^◡ccnv 5613   “ cima 5617   Fn wfn 6472  ‘cfv 6477  (class class class)co 7341   ∈ cmpo 7343   ∘_f cof 7603   ↑_m cmap 8745  Fincfn 8864  1c1 10999  ℕcn 12117  9c9 12179  ℕ₀cn0 12373  ndxcnx 17096  Basecbs 17112  +_gcplusg 17153  ._rcmulr 17154  Scalarcsca 17156   ·_𝑠 cvsca 17157  TopSetcts 17159  TopOpenctopn 17317  ∏_tcpt 17334   mPwSer cmps 21834

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 2112  ax-9 2120  ax-10 2143  ax-11 2159  ax-12 2179  ax-ext 2702  ax-rep 5215  ax-sep 5232  ax-nul 5242  ax-pow 5301  ax-pr 5368  ax-un 7663  ax-cnex 11054  ax-resscn 11055  ax-1cn 11056  ax-icn 11057  ax-addcl 11058  ax-addrcl 11059  ax-mulcl 11060  ax-mulrcl 11061  ax-mulcom 11062  ax-addass 11063  ax-mulass 11064  ax-distr 11065  ax-i2m1 11066  ax-1ne0 11067  ax-1rid 11068  ax-rnegex 11069  ax-rrecex 11070  ax-cnre 11071  ax-pre-lttri 11072  ax-pre-lttrn 11073  ax-pre-ltadd 11074  ax-pre-mulgt0 11075

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 2067  df-mo 2534  df-eu 2563  df-clab 2709  df-cleq 2722  df-clel 2804  df-nfc 2879  df-ne 2927  df-nel 3031  df-ral 3046  df-rex 3055  df-reu 3345  df-rab 3394  df-v 3436  df-sbc 3740  df-csb 3849  df-dif 3903  df-un 3905  df-in 3907  df-ss 3917  df-pss 3920  df-nul 4282  df-if 4474  df-pw 4550  df-sn 4575  df-pr 4577  df-tp 4579  df-op 4581  df-uni 4858  df-iun 4941  df-br 5090  df-opab 5152  df-mpt 5171  df-tr 5197  df-id 5509  df-eprel 5514  df-po 5522  df-so 5523  df-fr 5567  df-we 5569  df-xp 5620  df-rel 5621  df-cnv 5622  df-co 5623  df-dm 5624  df-rn 5625  df-res 5626  df-ima 5627  df-pred 6244  df-ord 6305  df-on 6306  df-lim 6307  df-suc 6308  df-iota 6433  df-fun 6479  df-fn 6480  df-f 6481  df-f1 6482  df-fo 6483  df-f1o 6484  df-fv 6485  df-riota 7298  df-ov 7344  df-oprab 7345  df-mpo 7346  df-of 7605  df-om 7792  df-1st 7916  df-2nd 7917  df-supp 8086  df-frecs 8206  df-wrecs 8237  df-recs 8286  df-rdg 8324  df-1o 8380  df-er 8617  df-map 8747  df-en 8865  df-dom 8866  df-sdom 8867  df-fin 8868  df-fsupp 9241  df-pnf 11140  df-mnf 11141  df-xr 11142  df-ltxr 11143  df-le 11144  df-sub 11338  df-neg 11339  df-nn 12118  df-2 12180  df-3 12181  df-4 12182  df-5 12183  df-6 12184  df-7 12185  df-8 12186  df-9 12187  df-n0 12374  df-z 12461  df-uz 12725  df-fz 13400  df-struct 17050  df-slot 17085  df-ndx 17097  df-base 17113  df-plusg 17166  df-mulr 17167  df-sca 17169  df-vsca 17170  df-tset 17172  df-psr 21839

This theorem is referenced by:  psrvsca  21879