Theorem rrxip 22986

Description: The inner product of the generalized real Euclidean spaces. (Contributed by Thierry Arnoux, 16-Jun-2019.)

Hypotheses

Ref	Expression
rrxval.r	⊢ 𝐻 = (ℝ^‘𝐼)
rrxbase.b	⊢ 𝐵 = (Base‘𝐻)

Assertion

Ref	Expression
rrxip	⊢ (𝐼 ∈ 𝑉 → (𝑓 ∈ (ℝ ↑𝑚 𝐼), 𝑔 ∈ (ℝ ↑𝑚 𝐼) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥))))) = (·𝑖‘𝐻))

Distinct variable groups:   𝑓,𝑔,𝑥,𝐵   𝑓,𝐼,𝑔,𝑥   𝑓,𝑉,𝑔,𝑥

Allowed substitution hints:   𝐻(𝑥,𝑓,𝑔)

Proof of Theorem rrxip

Step	Hyp	Ref	Expression
1		rrxval.r	. . . 4 ⊢ 𝐻 = (ℝ^‘𝐼)
2		rrxbase.b	. . . 4 ⊢ 𝐵 = (Base‘𝐻)
3	1, 2	rrxprds 22985	. . 3 ⊢ (𝐼 ∈ 𝑉 → 𝐻 = (toℂHil‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)))
4	3	fveq2d 6107	. 2 ⊢ (𝐼 ∈ 𝑉 → (·𝑖‘𝐻) = (·𝑖‘(toℂHil‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵))))
5		eqid 2610	. . . 4 ⊢ (toℂHil‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)) = (toℂHil‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵))
6		eqid 2610	. . . 4 ⊢ (·𝑖‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)) = (·𝑖‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵))
7	5, 6	tchip 22832	. . 3 ⊢ (·𝑖‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)) = (·𝑖‘(toℂHil‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)))
8		fvex 6113	. . . . . 6 ⊢ (Base‘𝐻) ∈ V
9	2, 8	eqeltri 2684	. . . . 5 ⊢ 𝐵 ∈ V
10		eqid 2610	. . . . . 6 ⊢ ((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵) = ((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)
11		eqid 2610	. . . . . 6 ⊢ (·𝑖‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = (·𝑖‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})))
12	10, 11	ressip 15856	. . . . 5 ⊢ (𝐵 ∈ V → (·𝑖‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = (·𝑖‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)))
13	9, 12	ax-mp 5	. . . 4 ⊢ (·𝑖‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = (·𝑖‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵))
14		eqid 2610	. . . . . 6 ⊢ (ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) = (ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))
15		refld 19784	. . . . . . 7 ⊢ ℝfld ∈ Field
16	15	a1i 11	. . . . . 6 ⊢ (𝐼 ∈ 𝑉 → ℝfld ∈ Field)
17		snex 4835	. . . . . . 7 ⊢ {((subringAlg ‘ℝfld)‘ℝ)} ∈ V
18		xpexg 6858	. . . . . . 7 ⊢ ((𝐼 ∈ 𝑉 ∧ {((subringAlg ‘ℝfld)‘ℝ)} ∈ V) → (𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}) ∈ V)
19	17, 18	mpan2 703	. . . . . 6 ⊢ (𝐼 ∈ 𝑉 → (𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}) ∈ V)
20		eqid 2610	. . . . . 6 ⊢ (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})))
21		fvex 6113	. . . . . . . . 9 ⊢ ((subringAlg ‘ℝfld)‘ℝ) ∈ V
22	21	snnz 4252	. . . . . . . 8 ⊢ {((subringAlg ‘ℝfld)‘ℝ)} ≠ ∅
23		dmxp 5265	. . . . . . . 8 ⊢ ({((subringAlg ‘ℝfld)‘ℝ)} ≠ ∅ → dom (𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}) = 𝐼)
24	22, 23	ax-mp 5	. . . . . . 7 ⊢ dom (𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}) = 𝐼
25	24	a1i 11	. . . . . 6 ⊢ (𝐼 ∈ 𝑉 → dom (𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}) = 𝐼)
26	14, 16, 19, 20, 25, 11	prdsip 15944	. . . . 5 ⊢ (𝐼 ∈ 𝑉 → (·𝑖‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = (𝑓 ∈ (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))), 𝑔 ∈ (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥))(𝑔‘𝑥))))))
27	14, 16, 19, 20, 25	prdsbas 15940	. . . . . . 7 ⊢ (𝐼 ∈ 𝑉 → (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = X𝑥 ∈ 𝐼 (Base‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥)))
28		eqidd 2611	. . . . . . . . . . 11 ⊢ (𝑥 ∈ 𝐼 → ((subringAlg ‘ℝfld)‘ℝ) = ((subringAlg ‘ℝfld)‘ℝ))
29		rebase 19771	. . . . . . . . . . . . 13 ⊢ ℝ = (Base‘ℝfld)
30	29	eqimssi 3622	. . . . . . . . . . . 12 ⊢ ℝ ⊆ (Base‘ℝfld)
31	30	a1i 11	. . . . . . . . . . 11 ⊢ (𝑥 ∈ 𝐼 → ℝ ⊆ (Base‘ℝfld))
32	28, 31	srabase 18999	. . . . . . . . . 10 ⊢ (𝑥 ∈ 𝐼 → (Base‘ℝfld) = (Base‘((subringAlg ‘ℝfld)‘ℝ)))
33	29	a1i 11	. . . . . . . . . 10 ⊢ (𝑥 ∈ 𝐼 → ℝ = (Base‘ℝfld))
34	21	fvconst2 6374	. . . . . . . . . . 11 ⊢ (𝑥 ∈ 𝐼 → ((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥) = ((subringAlg ‘ℝfld)‘ℝ))
35	34	fveq2d 6107	. . . . . . . . . 10 ⊢ (𝑥 ∈ 𝐼 → (Base‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥)) = (Base‘((subringAlg ‘ℝfld)‘ℝ)))
36	32, 33, 35	3eqtr4rd 2655	. . . . . . . . 9 ⊢ (𝑥 ∈ 𝐼 → (Base‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥)) = ℝ)
37	36	adantl 481	. . . . . . . 8 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑥 ∈ 𝐼) → (Base‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥)) = ℝ)
38	37	ixpeq2dva 7809	. . . . . . 7 ⊢ (𝐼 ∈ 𝑉 → X𝑥 ∈ 𝐼 (Base‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥)) = X𝑥 ∈ 𝐼 ℝ)
39		reex 9906	. . . . . . . 8 ⊢ ℝ ∈ V
40		ixpconstg 7803	. . . . . . . 8 ⊢ ((𝐼 ∈ 𝑉 ∧ ℝ ∈ V) → X𝑥 ∈ 𝐼 ℝ = (ℝ ↑𝑚 𝐼))
41	39, 40	mpan2 703	. . . . . . 7 ⊢ (𝐼 ∈ 𝑉 → X𝑥 ∈ 𝐼 ℝ = (ℝ ↑𝑚 𝐼))
42	27, 38, 41	3eqtrd 2648	. . . . . 6 ⊢ (𝐼 ∈ 𝑉 → (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = (ℝ ↑𝑚 𝐼))
43		remulr 19776	. . . . . . . . . . 11 ⊢ · = (.r‘ℝfld)
44	34, 31	sraip 19004	. . . . . . . . . . 11 ⊢ (𝑥 ∈ 𝐼 → (.r‘ℝfld) = (·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥)))
45	43, 44	syl5req 2657	. . . . . . . . . 10 ⊢ (𝑥 ∈ 𝐼 → (·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥)) = · )
46	45	oveqd 6566	. . . . . . . . 9 ⊢ (𝑥 ∈ 𝐼 → ((𝑓‘𝑥)(·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥))(𝑔‘𝑥)) = ((𝑓‘𝑥) · (𝑔‘𝑥)))
47	46	mpteq2ia 4668	. . . . . . . 8 ⊢ (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥))(𝑔‘𝑥))) = (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥)))
48	47	a1i 11	. . . . . . 7 ⊢ (𝐼 ∈ 𝑉 → (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥))(𝑔‘𝑥))) = (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥))))
49	48	oveq2d 6565	. . . . . 6 ⊢ (𝐼 ∈ 𝑉 → (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥))(𝑔‘𝑥)))) = (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥)))))
50	42, 42, 49	mpt2eq123dv 6615	. . . . 5 ⊢ (𝐼 ∈ 𝑉 → (𝑓 ∈ (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))), 𝑔 ∈ (Base‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥)(·𝑖‘((𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})‘𝑥))(𝑔‘𝑥))))) = (𝑓 ∈ (ℝ ↑𝑚 𝐼), 𝑔 ∈ (ℝ ↑𝑚 𝐼) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥))))))
51	26, 50	eqtrd 2644	. . . 4 ⊢ (𝐼 ∈ 𝑉 → (·𝑖‘(ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)}))) = (𝑓 ∈ (ℝ ↑𝑚 𝐼), 𝑔 ∈ (ℝ ↑𝑚 𝐼) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥))))))
52	13, 51	syl5eqr 2658	. . 3 ⊢ (𝐼 ∈ 𝑉 → (·𝑖‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵)) = (𝑓 ∈ (ℝ ↑𝑚 𝐼), 𝑔 ∈ (ℝ ↑𝑚 𝐼) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥))))))
53	7, 52	syl5eqr 2658	. 2 ⊢ (𝐼 ∈ 𝑉 → (·𝑖‘(toℂHil‘((ℝfldXs(𝐼 × {((subringAlg ‘ℝfld)‘ℝ)})) ↾s 𝐵))) = (𝑓 ∈ (ℝ ↑𝑚 𝐼), 𝑔 ∈ (ℝ ↑𝑚 𝐼) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥))))))
54	4, 53	eqtr2d 2645	1 ⊢ (𝐼 ∈ 𝑉 → (𝑓 ∈ (ℝ ↑𝑚 𝐼), 𝑔 ∈ (ℝ ↑𝑚 𝐼) ↦ (ℝfld Σg (𝑥 ∈ 𝐼 ↦ ((𝑓‘𝑥) · (𝑔‘𝑥))))) = (·𝑖‘𝐻))

Syntax hints:   → wi 4   = wceq 1475   ∈ wcel 1977   ≠ wne 2780  Vcvv 3173   ⊆ wss 3540  ∅c0 3874  {csn 4125   ↦ cmpt 4643   × cxp 5036  dom cdm 5038  ‘cfv 5804  (class class class)co 6549   ↦ cmpt2 6551   ↑_𝑚 cmap 7744  Xcixp 7794  ℝcr 9814   · cmul 9820  Basecbs 15695   ↾_s cress 15696  ._rcmulr 15769  ·_𝑖cip 15773   Σ_g cgsu 15924  X_scprds 15929  Fieldcfield 18571  subringAlg csra 18989  ℝ_fldcrefld 19769  toℂHilctch 22775  ℝ^crrx 22979

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892  ax-pre-sup 9893  ax-addf 9894  ax-mulf 9895

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-int 4411  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-tpos 7239  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-oadd 7451  df-er 7629  df-map 7746  df-ixp 7795  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-sup 8231  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-div 10564  df-nn 10898  df-2 10956  df-3 10957  df-4 10958  df-5 10959  df-6 10960  df-7 10961  df-8 10962  df-9 10963  df-n0 11170  df-z 11255  df-dec 11370  df-uz 11564  df-rp 11709  df-fz 12198  df-seq 12664  df-exp 12723  df-cj 13687  df-re 13688  df-im 13689  df-sqrt 13823  df-abs 13824  df-struct 15697  df-ndx 15698  df-slot 15699  df-base 15700  df-sets 15701  df-ress 15702  df-plusg 15781  df-mulr 15782  df-starv 15783  df-sca 15784  df-vsca 15785  df-ip 15786  df-tset 15787  df-ple 15788  df-ds 15791  df-unif 15792  df-hom 15793  df-cco 15794  df-0g 15925  df-prds 15931  df-pws 15933  df-mgm 17065  df-sgrp 17107  df-mnd 17118  df-grp 17248  df-minusg 17249  df-subg 17414  df-cmn 18018  df-mgp 18313  df-ur 18325  df-ring 18372  df-cring 18373  df-oppr 18446  df-dvdsr 18464  df-unit 18465  df-invr 18495  df-dvr 18506  df-drng 18572  df-field 18573  df-subrg 18601  df-sra 18993  df-rgmod 18994  df-cnfld 19568  df-refld 19770  df-dsmm 19895  df-frlm 19910  df-tng 22199  df-tch 22777  df-rrx 22981

This theorem is referenced by:  rrxnm  22987