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Theorem clmvscom 23297

Description: Commutative law for the scalar product. (Contributed by NM, 14-Feb-2008.) (Revised by AV, 7-Oct-2021.)

**Hypotheses**
Ref	Expression
clmvscl.v	⊢ 𝑉 = (Base‘𝑊)
clmvscl.f	⊢ 𝐹 = (Scalar‘𝑊)
clmvscl.s	⊢ · = ( ·_𝑠 ‘𝑊)
clmvscl.k	⊢ 𝐾 = (Base‘𝐹)

**Assertion**
Ref	Expression
clmvscom	⊢ ((𝑊 ∈ ℂMod ∧ (𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → (𝑄 · (𝑅 · 𝑋)) = (𝑅 · (𝑄 · 𝑋)))

**Proof of Theorem clmvscom**
Step	Hyp	Ref	Expression
1		ssel 3815	. . . . . . . 8 ⊢ (𝐾 ⊆ ℂ → (𝑄 ∈ 𝐾 → 𝑄 ∈ ℂ))
2		ssel 3815	. . . . . . . 8 ⊢ (𝐾 ⊆ ℂ → (𝑅 ∈ 𝐾 → 𝑅 ∈ ℂ))
3	1, 2	anim12d 602	. . . . . . 7 ⊢ (𝐾 ⊆ ℂ → ((𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾) → (𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ)))
4		clmvscl.f	. . . . . . . 8 ⊢ 𝐹 = (Scalar‘𝑊)
5		clmvscl.k	. . . . . . . 8 ⊢ 𝐾 = (Base‘𝐹)
6	4, 5	clmsscn 23286	. . . . . . 7 ⊢ (𝑊 ∈ ℂMod → 𝐾 ⊆ ℂ)
7	3, 6	syl11 33	. . . . . 6 ⊢ ((𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾) → (𝑊 ∈ ℂMod → (𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ)))
8	7	3adant3 1123	. . . . 5 ⊢ ((𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉) → (𝑊 ∈ ℂMod → (𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ)))
9	8	impcom 398	. . . 4 ⊢ ((𝑊 ∈ ℂMod ∧ (𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → (𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ))
10		mulcom 10358	. . . 4 ⊢ ((𝑄 ∈ ℂ ∧ 𝑅 ∈ ℂ) → (𝑄 · 𝑅) = (𝑅 · 𝑄))
11	9, 10	syl 17	. . 3 ⊢ ((𝑊 ∈ ℂMod ∧ (𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → (𝑄 · 𝑅) = (𝑅 · 𝑄))
12	11	oveq1d 6937	. 2 ⊢ ((𝑊 ∈ ℂMod ∧ (𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → ((𝑄 · 𝑅) · 𝑋) = ((𝑅 · 𝑄) · 𝑋))
13		clmvscl.v	. . 3 ⊢ 𝑉 = (Base‘𝑊)
14		clmvscl.s	. . 3 ⊢ · = ( ·_𝑠 ‘𝑊)
15	13, 4, 14, 5	clmvsass 23296	. 2 ⊢ ((𝑊 ∈ ℂMod ∧ (𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → ((𝑄 · 𝑅) · 𝑋) = (𝑄 · (𝑅 · 𝑋)))
16		3ancoma 1082	. . 3 ⊢ ((𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉) ↔ (𝑅 ∈ 𝐾 ∧ 𝑄 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉))
17	13, 4, 14, 5	clmvsass 23296	. . 3 ⊢ ((𝑊 ∈ ℂMod ∧ (𝑅 ∈ 𝐾 ∧ 𝑄 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → ((𝑅 · 𝑄) · 𝑋) = (𝑅 · (𝑄 · 𝑋)))
18	16, 17	sylan2b 587	. 2 ⊢ ((𝑊 ∈ ℂMod ∧ (𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → ((𝑅 · 𝑄) · 𝑋) = (𝑅 · (𝑄 · 𝑋)))
19	12, 15, 18	3eqtr3d 2822	1 ⊢ ((𝑊 ∈ ℂMod ∧ (𝑄 ∈ 𝐾 ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉)) → (𝑄 · (𝑅 · 𝑋)) = (𝑅 · (𝑄 · 𝑋)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 386 ∧ w3a 1071 = wceq 1601 ∈ wcel 2107 ⊆ wss 3792 ‘cfv 6135 (class class class)co 6922 ℂcc 10270 · cmul 10277 Basecbs 16255 Scalarcsca 16341 ·_𝑠 cvsca 16342 ℂModcclm 23269

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1839 ax-4 1853 ax-5 1953 ax-6 2021 ax-7 2055 ax-8 2109 ax-9 2116 ax-10 2135 ax-11 2150 ax-12 2163 ax-13 2334 ax-ext 2754 ax-sep 5017 ax-nul 5025 ax-pow 5077 ax-pr 5138 ax-un 7226 ax-cnex 10328 ax-resscn 10329 ax-1cn 10330 ax-icn 10331 ax-addcl 10332 ax-addrcl 10333 ax-mulcl 10334 ax-mulrcl 10335 ax-mulcom 10336 ax-addass 10337 ax-mulass 10338 ax-distr 10339 ax-i2m1 10340 ax-1ne0 10341 ax-1rid 10342 ax-rnegex 10343 ax-rrecex 10344 ax-cnre 10345 ax-pre-lttri 10346 ax-pre-lttrn 10347 ax-pre-ltadd 10348 ax-pre-mulgt0 10349 ax-mulf 10352

This theorem depends on definitions: df-bi 199 df-an 387 df-or 837 df-3or 1072 df-3an 1073 df-tru 1605 df-ex 1824 df-nf 1828 df-sb 2012 df-mo 2551 df-eu 2587 df-clab 2764 df-cleq 2770 df-clel 2774 df-nfc 2921 df-ne 2970 df-nel 3076 df-ral 3095 df-rex 3096 df-reu 3097 df-rab 3099 df-v 3400 df-sbc 3653 df-csb 3752 df-dif 3795 df-un 3797 df-in 3799 df-ss 3806 df-pss 3808 df-nul 4142 df-if 4308 df-pw 4381 df-sn 4399 df-pr 4401 df-tp 4403 df-op 4405 df-uni 4672 df-int 4711 df-iun 4755 df-br 4887 df-opab 4949 df-mpt 4966 df-tr 4988 df-id 5261 df-eprel 5266 df-po 5274 df-so 5275 df-fr 5314 df-we 5316 df-xp 5361 df-rel 5362 df-cnv 5363 df-co 5364 df-dm 5365 df-rn 5366 df-res 5367 df-ima 5368 df-pred 5933 df-ord 5979 df-on 5980 df-lim 5981 df-suc 5982 df-iota 6099 df-fun 6137 df-fn 6138 df-f 6139 df-f1 6140 df-fo 6141 df-f1o 6142 df-fv 6143 df-riota 6883 df-ov 6925 df-oprab 6926 df-mpt2 6927 df-om 7344 df-1st 7445 df-2nd 7446 df-wrecs 7689 df-recs 7751 df-rdg 7789 df-1o 7843 df-oadd 7847 df-er 8026 df-en 8242 df-dom 8243 df-sdom 8244 df-fin 8245 df-pnf 10413 df-mnf 10414 df-xr 10415 df-ltxr 10416 df-le 10417 df-sub 10608 df-neg 10609 df-nn 11375 df-2 11438 df-3 11439 df-4 11440 df-5 11441 df-6 11442 df-7 11443 df-8 11444 df-9 11445 df-n0 11643 df-z 11729 df-dec 11846 df-uz 11993 df-fz 12644 df-struct 16257 df-ndx 16258 df-slot 16259 df-base 16261 df-sets 16262 df-ress 16263 df-plusg 16351 df-mulr 16352 df-starv 16353 df-tset 16357 df-ple 16358 df-ds 16360 df-unif 16361 df-subrg 19170 df-lmod 19257 df-cnfld 20143 df-clm 23270

This theorem is referenced by: (None)

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