Theorem ipdiri 30634

Description: Distributive law for inner product. Equation I3 of [Ponnusamy] p. 362. (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 ∈ CPreHilOLD

Assertion

Ref	Expression
ipdiri	⊢ ((𝐴 ∈ 𝑋 ∧ 𝐵 ∈ 𝑋 ∧ 𝐶 ∈ 𝑋) → ((𝐴𝐺𝐵)𝑃𝐶) = ((𝐴𝑃𝐶) + (𝐵𝑃𝐶)))

Proof of Theorem ipdiri

Step	Hyp	Ref	Expression
1		oveq1 7422	. . . 4 ⊢ (𝐴 = if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈)) → (𝐴𝐺𝐵) = (if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺𝐵))
2	1	oveq1d 7430	. . 3 ⊢ (𝐴 = if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈)) → ((𝐴𝐺𝐵)𝑃𝐶) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺𝐵)𝑃𝐶))
3		oveq1 7422	. . . 4 ⊢ (𝐴 = if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈)) → (𝐴𝑃𝐶) = (if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶))
4	3	oveq1d 7430	. . 3 ⊢ (𝐴 = if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈)) → ((𝐴𝑃𝐶) + (𝐵𝑃𝐶)) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (𝐵𝑃𝐶)))
5	2, 4	eqeq12d 2744	. 2 ⊢ (𝐴 = if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈)) → (((𝐴𝐺𝐵)𝑃𝐶) = ((𝐴𝑃𝐶) + (𝐵𝑃𝐶)) ↔ ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺𝐵)𝑃𝐶) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (𝐵𝑃𝐶))))
6		oveq2 7423	. . . 4 ⊢ (𝐵 = if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)) → (if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺𝐵) = (if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))))
7	6	oveq1d 7430	. . 3 ⊢ (𝐵 = if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)) → ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺𝐵)𝑃𝐶) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)))𝑃𝐶))
8		oveq1 7422	. . . 4 ⊢ (𝐵 = if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)) → (𝐵𝑃𝐶) = (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃𝐶))
9	8	oveq2d 7431	. . 3 ⊢ (𝐵 = if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)) → ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (𝐵𝑃𝐶)) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃𝐶)))
10	7, 9	eqeq12d 2744	. 2 ⊢ (𝐵 = if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)) → (((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺𝐵)𝑃𝐶) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (𝐵𝑃𝐶)) ↔ ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)))𝑃𝐶) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃𝐶))))
11		oveq2 7423	. . 3 ⊢ (𝐶 = if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈)) → ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)))𝑃𝐶) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))))
12		oveq2 7423	. . . 4 ⊢ (𝐶 = if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈)) → (if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) = (if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))))
13		oveq2 7423	. . . 4 ⊢ (𝐶 = if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈)) → (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃𝐶) = (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))))
14	12, 13	oveq12d 7433	. . 3 ⊢ (𝐶 = if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈)) → ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃𝐶)) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))) + (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈)))))
15	11, 14	eqeq12d 2744	. 2 ⊢ (𝐶 = if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈)) → (((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)))𝑃𝐶) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃𝐶) + (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃𝐶)) ↔ ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))) + (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))))))
16		ip1i.1	. . 3 ⊢ 𝑋 = (BaseSet‘𝑈)
17		ip1i.2	. . 3 ⊢ 𝐺 = ( +𝑣 ‘𝑈)
18		ip1i.4	. . 3 ⊢ 𝑆 = ( ·𝑠OLD ‘𝑈)
19		ip1i.7	. . 3 ⊢ 𝑃 = (·𝑖OLD‘𝑈)
20		ip1i.9	. . 3 ⊢ 𝑈 ∈ CPreHilOLD
21		eqid 2728	. . . 4 ⊢ (0vec‘𝑈) = (0vec‘𝑈)
22	16, 21, 20	elimph 30624	. . 3 ⊢ if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈)) ∈ 𝑋
23	16, 21, 20	elimph 30624	. . 3 ⊢ if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)) ∈ 𝑋
24	16, 21, 20	elimph 30624	. . 3 ⊢ if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈)) ∈ 𝑋
25	16, 17, 18, 19, 20, 22, 23, 24	ipdirilem 30633	. 2 ⊢ ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝐺if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈)))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))) = ((if(𝐴 ∈ 𝑋, 𝐴, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))) + (if(𝐵 ∈ 𝑋, 𝐵, (0vec‘𝑈))𝑃if(𝐶 ∈ 𝑋, 𝐶, (0vec‘𝑈))))
26	5, 10, 15, 25	dedth3h 4585	1 ⊢ ((𝐴 ∈ 𝑋 ∧ 𝐵 ∈ 𝑋 ∧ 𝐶 ∈ 𝑋) → ((𝐴𝐺𝐵)𝑃𝐶) = ((𝐴𝑃𝐶) + (𝐵𝑃𝐶)))

Syntax hints:   → wi 4   ∧ w3a 1085   = wceq 1534   ∈ wcel 2099  ifcif 4525  ‘cfv 6543  (class class class)co 7415   + caddc 11136   +_𝑣 cpv 30389  BaseSetcba 30390   ·_𝑠OLD cns 30391  0_veccn0v 30392  ·_𝑖OLDcdip 30504  CPreHil_OLDccphlo 30616

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1790  ax-4 1804  ax-5 1906  ax-6 1964  ax-7 2004  ax-8 2101  ax-9 2109  ax-10 2130  ax-11 2147  ax-12 2167  ax-ext 2699  ax-rep 5280  ax-sep 5294  ax-nul 5301  ax-pow 5360  ax-pr 5424  ax-un 7735  ax-inf2 9659  ax-cnex 11189  ax-resscn 11190  ax-1cn 11191  ax-icn 11192  ax-addcl 11193  ax-addrcl 11194  ax-mulcl 11195  ax-mulrcl 11196  ax-mulcom 11197  ax-addass 11198  ax-mulass 11199  ax-distr 11200  ax-i2m1 11201  ax-1ne0 11202  ax-1rid 11203  ax-rnegex 11204  ax-rrecex 11205  ax-cnre 11206  ax-pre-lttri 11207  ax-pre-lttrn 11208  ax-pre-ltadd 11209  ax-pre-mulgt0 11210  ax-pre-sup 11211

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 847  df-3or 1086  df-3an 1087  df-tru 1537  df-fal 1547  df-ex 1775  df-nf 1779  df-sb 2061  df-mo 2530  df-eu 2559  df-clab 2706  df-cleq 2720  df-clel 2806  df-nfc 2881  df-ne 2937  df-nel 3043  df-ral 3058  df-rex 3067  df-rmo 3372  df-reu 3373  df-rab 3429  df-v 3472  df-sbc 3776  df-csb 3891  df-dif 3948  df-un 3950  df-in 3952  df-ss 3962  df-pss 3964  df-nul 4320  df-if 4526  df-pw 4601  df-sn 4626  df-pr 4628  df-op 4632  df-uni 4905  df-int 4946  df-iun 4994  df-br 5144  df-opab 5206  df-mpt 5227  df-tr 5261  df-id 5571  df-eprel 5577  df-po 5585  df-so 5586  df-fr 5628  df-se 5629  df-we 5630  df-xp 5679  df-rel 5680  df-cnv 5681  df-co 5682  df-dm 5683  df-rn 5684  df-res 5685  df-ima 5686  df-pred 6300  df-ord 6367  df-on 6368  df-lim 6369  df-suc 6370  df-iota 6495  df-fun 6545  df-fn 6546  df-f 6547  df-f1 6548  df-fo 6549  df-f1o 6550  df-fv 6551  df-isom 6552  df-riota 7371  df-ov 7418  df-oprab 7419  df-mpo 7420  df-om 7866  df-1st 7988  df-2nd 7989  df-frecs 8281  df-wrecs 8312  df-recs 8386  df-rdg 8425  df-1o 8481  df-er 8719  df-en 8959  df-dom 8960  df-sdom 8961  df-fin 8962  df-sup 9460  df-oi 9528  df-card 9957  df-pnf 11275  df-mnf 11276  df-xr 11277  df-ltxr 11278  df-le 11279  df-sub 11471  df-neg 11472  df-div 11897  df-nn 12238  df-2 12300  df-3 12301  df-4 12302  df-n0 12498  df-z 12584  df-uz 12848  df-rp 13002  df-fz 13512  df-fzo 13655  df-seq 13994  df-exp 14054  df-hash 14317  df-cj 15073  df-re 15074  df-im 15075  df-sqrt 15209  df-abs 15210  df-clim 15459  df-sum 15660  df-grpo 30297  df-gid 30298  df-ginv 30299  df-ablo 30349  df-vc 30363  df-nv 30396  df-va 30399  df-ba 30400  df-sm 30401  df-0v 30402  df-nmcv 30404  df-dip 30505  df-ph 30617

This theorem is referenced by:  ipasslem1  30635  ipasslem2  30636  ipasslem11  30644  dipdir  30646