ipasslem4 - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > ipasslem4		Structured version Visualization version GIF version

Theorem ipasslem4 27073

Description: Lemma for ipassi 27080. Show the inner product associative law for positive integer reciprocals. (Contributed by NM, 27-Apr-2007.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
ip1i.1	⊢ 𝑋 = (BaseSet‘𝑈)
ip1i.2	⊢ 𝐺 = ( +_𝑣 ‘𝑈)
ip1i.4	⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
ip1i.7	⊢ 𝑃 = (·_𝑖OLD‘𝑈)
ip1i.9	⊢ 𝑈 ∈ CPreHil_OLD
ipasslem1.b	⊢ 𝐵 ∈ 𝑋

**Assertion**
Ref	Expression
ipasslem4	⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → (((1 / 𝑁)𝑆𝐴)𝑃𝐵) = ((1 / 𝑁) · (𝐴𝑃𝐵)))

**Proof of Theorem ipasslem4**
Step	Hyp	Ref	Expression
1		nnrecre 10934	. . . . 5 ⊢ (𝑁 ∈ ℕ → (1 / 𝑁) ∈ ℝ)
2	1	recnd 9947	. . . 4 ⊢ (𝑁 ∈ ℕ → (1 / 𝑁) ∈ ℂ)
3		ip1i.9	. . . . . 6 ⊢ 𝑈 ∈ CPreHil_OLD
4	3	phnvi 27055	. . . . 5 ⊢ 𝑈 ∈ NrmCVec
5		ip1i.1	. . . . . 6 ⊢ 𝑋 = (BaseSet‘𝑈)
6		ip1i.4	. . . . . 6 ⊢ 𝑆 = ( ·_𝑠OLD ‘𝑈)
7	5, 6	nvscl 26865	. . . . 5 ⊢ ((𝑈 ∈ NrmCVec ∧ (1 / 𝑁) ∈ ℂ ∧ 𝐴 ∈ 𝑋) → ((1 / 𝑁)𝑆𝐴) ∈ 𝑋)
8	4, 7	mp3an1 1403	. . . 4 ⊢ (((1 / 𝑁) ∈ ℂ ∧ 𝐴 ∈ 𝑋) → ((1 / 𝑁)𝑆𝐴) ∈ 𝑋)
9	2, 8	sylan 487	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((1 / 𝑁)𝑆𝐴) ∈ 𝑋)
10		ipasslem1.b	. . . 4 ⊢ 𝐵 ∈ 𝑋
11		ip1i.7	. . . . 5 ⊢ 𝑃 = (·_𝑖OLD‘𝑈)
12	5, 11	dipcl 26951	. . . 4 ⊢ ((𝑈 ∈ NrmCVec ∧ ((1 / 𝑁)𝑆𝐴) ∈ 𝑋 ∧ 𝐵 ∈ 𝑋) → (((1 / 𝑁)𝑆𝐴)𝑃𝐵) ∈ ℂ)
13	4, 10, 12	mp3an13 1407	. . 3 ⊢ (((1 / 𝑁)𝑆𝐴) ∈ 𝑋 → (((1 / 𝑁)𝑆𝐴)𝑃𝐵) ∈ ℂ)
14	9, 13	syl 17	. 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → (((1 / 𝑁)𝑆𝐴)𝑃𝐵) ∈ ℂ)
15	5, 11	dipcl 26951	. . . 4 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋 ∧ 𝐵 ∈ 𝑋) → (𝐴𝑃𝐵) ∈ ℂ)
16	4, 10, 15	mp3an13 1407	. . 3 ⊢ (𝐴 ∈ 𝑋 → (𝐴𝑃𝐵) ∈ ℂ)
17		mulcl 9899	. . 3 ⊢ (((1 / 𝑁) ∈ ℂ ∧ (𝐴𝑃𝐵) ∈ ℂ) → ((1 / 𝑁) · (𝐴𝑃𝐵)) ∈ ℂ)
18	2, 16, 17	syl2an 493	. 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((1 / 𝑁) · (𝐴𝑃𝐵)) ∈ ℂ)
19		nncn 10905	. . 3 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℂ)
20	19	adantr 480	. 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → 𝑁 ∈ ℂ)
21		nnne0 10930	. . 3 ⊢ (𝑁 ∈ ℕ → 𝑁 ≠ 0)
22	21	adantr 480	. 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → 𝑁 ≠ 0)
23	19, 21	recidd 10675	. . . . . 6 ⊢ (𝑁 ∈ ℕ → (𝑁 · (1 / 𝑁)) = 1)
24	23	oveq1d 6564	. . . . 5 ⊢ (𝑁 ∈ ℕ → ((𝑁 · (1 / 𝑁)) · (𝐴𝑃𝐵)) = (1 · (𝐴𝑃𝐵)))
25	16	mulid2d 9937	. . . . 5 ⊢ (𝐴 ∈ 𝑋 → (1 · (𝐴𝑃𝐵)) = (𝐴𝑃𝐵))
26	24, 25	sylan9eq 2664	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((𝑁 · (1 / 𝑁)) · (𝐴𝑃𝐵)) = (𝐴𝑃𝐵))
27	23	oveq1d 6564	. . . . . . 7 ⊢ (𝑁 ∈ ℕ → ((𝑁 · (1 / 𝑁))𝑆𝐴) = (1𝑆𝐴))
28	5, 6	nvsid 26866	. . . . . . . 8 ⊢ ((𝑈 ∈ NrmCVec ∧ 𝐴 ∈ 𝑋) → (1𝑆𝐴) = 𝐴)
29	4, 28	mpan 702	. . . . . . 7 ⊢ (𝐴 ∈ 𝑋 → (1𝑆𝐴) = 𝐴)
30	27, 29	sylan9eq 2664	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((𝑁 · (1 / 𝑁))𝑆𝐴) = 𝐴)
31	2	adantr 480	. . . . . . 7 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → (1 / 𝑁) ∈ ℂ)
32		simpr 476	. . . . . . 7 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → 𝐴 ∈ 𝑋)
33	5, 6	nvsass 26867	. . . . . . . 8 ⊢ ((𝑈 ∈ NrmCVec ∧ (𝑁 ∈ ℂ ∧ (1 / 𝑁) ∈ ℂ ∧ 𝐴 ∈ 𝑋)) → ((𝑁 · (1 / 𝑁))𝑆𝐴) = (𝑁𝑆((1 / 𝑁)𝑆𝐴)))
34	4, 33	mpan 702	. . . . . . 7 ⊢ ((𝑁 ∈ ℂ ∧ (1 / 𝑁) ∈ ℂ ∧ 𝐴 ∈ 𝑋) → ((𝑁 · (1 / 𝑁))𝑆𝐴) = (𝑁𝑆((1 / 𝑁)𝑆𝐴)))
35	20, 31, 32, 34	syl3anc 1318	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((𝑁 · (1 / 𝑁))𝑆𝐴) = (𝑁𝑆((1 / 𝑁)𝑆𝐴)))
36	30, 35	eqtr3d 2646	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → 𝐴 = (𝑁𝑆((1 / 𝑁)𝑆𝐴)))
37	36	oveq1d 6564	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → (𝐴𝑃𝐵) = ((𝑁𝑆((1 / 𝑁)𝑆𝐴))𝑃𝐵))
38		nnnn0 11176	. . . . . 6 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ₀)
39	38	adantr 480	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → 𝑁 ∈ ℕ₀)
40		ip1i.2	. . . . . 6 ⊢ 𝐺 = ( +_𝑣 ‘𝑈)
41	5, 40, 6, 11, 3, 10	ipasslem1 27070	. . . . 5 ⊢ ((𝑁 ∈ ℕ₀ ∧ ((1 / 𝑁)𝑆𝐴) ∈ 𝑋) → ((𝑁𝑆((1 / 𝑁)𝑆𝐴))𝑃𝐵) = (𝑁 · (((1 / 𝑁)𝑆𝐴)𝑃𝐵)))
42	39, 9, 41	syl2anc 691	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((𝑁𝑆((1 / 𝑁)𝑆𝐴))𝑃𝐵) = (𝑁 · (((1 / 𝑁)𝑆𝐴)𝑃𝐵)))
43	26, 37, 42	3eqtrd 2648	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((𝑁 · (1 / 𝑁)) · (𝐴𝑃𝐵)) = (𝑁 · (((1 / 𝑁)𝑆𝐴)𝑃𝐵)))
44	16	adantl 481	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → (𝐴𝑃𝐵) ∈ ℂ)
45	20, 31, 44	mulassd 9942	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → ((𝑁 · (1 / 𝑁)) · (𝐴𝑃𝐵)) = (𝑁 · ((1 / 𝑁) · (𝐴𝑃𝐵))))
46	43, 45	eqtr3d 2646	. 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → (𝑁 · (((1 / 𝑁)𝑆𝐴)𝑃𝐵)) = (𝑁 · ((1 / 𝑁) · (𝐴𝑃𝐵))))
47	14, 18, 20, 22, 46	mulcanad 10541	1 ⊢ ((𝑁 ∈ ℕ ∧ 𝐴 ∈ 𝑋) → (((1 / 𝑁)𝑆𝐴)𝑃𝐵) = ((1 / 𝑁) · (𝐴𝑃𝐵)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ‘cfv 5804 (class class class)co 6549 ℂcc 9813 0cc0 9815 1c1 9816 · cmul 9820 / cdiv 10563 ℕcn 10897 ℕ₀cn0 11169 NrmCVeccnv 26823 +_𝑣 cpv 26824 BaseSetcba 26825 ·_𝑠OLD cns 26826 ·_𝑖OLDcdip 26939 CPreHil_OLDccphlo 27051

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-inf2 8421 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

This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-fal 1481 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-se 4998 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-isom 5813 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-oadd 7451 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-sup 8231 df-oi 8298 df-card 8648 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-n0 11170 df-z 11255 df-uz 11564 df-rp 11709 df-fz 12198 df-fzo 12335 df-seq 12664 df-exp 12723 df-hash 12980 df-cj 13687 df-re 13688 df-im 13689 df-sqrt 13823 df-abs 13824 df-clim 14067 df-sum 14265 df-grpo 26731 df-gid 26732 df-ginv 26733 df-ablo 26783 df-vc 26798 df-nv 26831 df-va 26834 df-ba 26835 df-sm 26836 df-0v 26837 df-nmcv 26839 df-dip 26940 df-ph 27052

This theorem is referenced by: ipasslem5 27074

W3C validator