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Theorem prdsmulrval 17457

Description: Value of a componentwise ring product in a structure product. (Contributed by Mario Carneiro, 11-Jan-2015.)

**Hypotheses**
Ref	Expression
prdsbasmpt.y	⊢ 𝑌 = (𝑆X_s𝑅)
prdsbasmpt.b	⊢ 𝐵 = (Base‘𝑌)
prdsbasmpt.s	⊢ (𝜑 → 𝑆 ∈ 𝑉)
prdsbasmpt.i	⊢ (𝜑 → 𝐼 ∈ 𝑊)
prdsbasmpt.r	⊢ (𝜑 → 𝑅 Fn 𝐼)
prdsplusgval.f	⊢ (𝜑 → 𝐹 ∈ 𝐵)
prdsplusgval.g	⊢ (𝜑 → 𝐺 ∈ 𝐵)
prdsmulrval.t	⊢ · = (._r‘𝑌)

**Assertion**
Ref	Expression
prdsmulrval	⊢ (𝜑 → (𝐹 · 𝐺) = (𝑥 ∈ 𝐼 ↦ ((𝐹‘𝑥)(._r‘(𝑅‘𝑥))(𝐺‘𝑥))))

Distinct variable groups: 𝑥,𝐵 𝑥,𝐹 𝑥,𝐺 𝜑,𝑥 𝑥,𝐼 𝑥,𝑉 𝑥,𝑅 𝑥,𝑆 𝑥,𝑊 𝑥,𝑌 Allowed substitution hint: · (𝑥)

Proof of Theorem prdsmulrval Dummy variables 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		prdsbasmpt.y	. . 3 ⊢ 𝑌 = (𝑆X_s𝑅)
2		prdsbasmpt.s	. . 3 ⊢ (𝜑 → 𝑆 ∈ 𝑉)
3		prdsbasmpt.r	. . . 4 ⊢ (𝜑 → 𝑅 Fn 𝐼)
4		prdsbasmpt.i	. . . 4 ⊢ (𝜑 → 𝐼 ∈ 𝑊)
5		fnex 7229	. . . 4 ⊢ ((𝑅 Fn 𝐼 ∧ 𝐼 ∈ 𝑊) → 𝑅 ∈ V)
6	3, 4, 5	syl2anc 583	. . 3 ⊢ (𝜑 → 𝑅 ∈ V)
7		prdsbasmpt.b	. . 3 ⊢ 𝐵 = (Base‘𝑌)
8	3	fndmd 6659	. . 3 ⊢ (𝜑 → dom 𝑅 = 𝐼)
9		prdsmulrval.t	. . 3 ⊢ · = (._r‘𝑌)
10	1, 2, 6, 7, 8, 9	prdsmulr 17441	. 2 ⊢ (𝜑 → · = (𝑦 ∈ 𝐵, 𝑧 ∈ 𝐵 ↦ (𝑥 ∈ 𝐼 ↦ ((𝑦‘𝑥)(._r‘(𝑅‘𝑥))(𝑧‘𝑥)))))
11		fveq1 6896	. . . . 5 ⊢ (𝑦 = 𝐹 → (𝑦‘𝑥) = (𝐹‘𝑥))
12		fveq1 6896	. . . . 5 ⊢ (𝑧 = 𝐺 → (𝑧‘𝑥) = (𝐺‘𝑥))
13	11, 12	oveqan12d 7439	. . . 4 ⊢ ((𝑦 = 𝐹 ∧ 𝑧 = 𝐺) → ((𝑦‘𝑥)(._r‘(𝑅‘𝑥))(𝑧‘𝑥)) = ((𝐹‘𝑥)(._r‘(𝑅‘𝑥))(𝐺‘𝑥)))
14	13	adantl 481	. . 3 ⊢ ((𝜑 ∧ (𝑦 = 𝐹 ∧ 𝑧 = 𝐺)) → ((𝑦‘𝑥)(._r‘(𝑅‘𝑥))(𝑧‘𝑥)) = ((𝐹‘𝑥)(._r‘(𝑅‘𝑥))(𝐺‘𝑥)))
15	14	mpteq2dv 5250	. 2 ⊢ ((𝜑 ∧ (𝑦 = 𝐹 ∧ 𝑧 = 𝐺)) → (𝑥 ∈ 𝐼 ↦ ((𝑦‘𝑥)(._r‘(𝑅‘𝑥))(𝑧‘𝑥))) = (𝑥 ∈ 𝐼 ↦ ((𝐹‘𝑥)(._r‘(𝑅‘𝑥))(𝐺‘𝑥))))
16		prdsplusgval.f	. 2 ⊢ (𝜑 → 𝐹 ∈ 𝐵)
17		prdsplusgval.g	. 2 ⊢ (𝜑 → 𝐺 ∈ 𝐵)
18	4	mptexd 7236	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝐼 ↦ ((𝐹‘𝑥)(._r‘(𝑅‘𝑥))(𝐺‘𝑥))) ∈ V)
19	10, 15, 16, 17, 18	ovmpod 7573	1 ⊢ (𝜑 → (𝐹 · 𝐺) = (𝑥 ∈ 𝐼 ↦ ((𝐹‘𝑥)(._r‘(𝑅‘𝑥))(𝐺‘𝑥))))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1534 ∈ wcel 2099 Vcvv 3471 ↦ cmpt 5231 Fn wfn 6543 ‘cfv 6548 (class class class)co 7420 Basecbs 17180 ._rcmulr 17234 X_scprds 17427

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 5285 ax-sep 5299 ax-nul 5306 ax-pow 5365 ax-pr 5429 ax-un 7740 ax-cnex 11195 ax-resscn 11196 ax-1cn 11197 ax-icn 11198 ax-addcl 11199 ax-addrcl 11200 ax-mulcl 11201 ax-mulrcl 11202 ax-mulcom 11203 ax-addass 11204 ax-mulass 11205 ax-distr 11206 ax-i2m1 11207 ax-1ne0 11208 ax-1rid 11209 ax-rnegex 11210 ax-rrecex 11211 ax-cnre 11212 ax-pre-lttri 11213 ax-pre-lttrn 11214 ax-pre-ltadd 11215 ax-pre-mulgt0 11216

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 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-reu 3374 df-rab 3430 df-v 3473 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4909 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6500 df-fun 6550 df-fn 6551 df-f 6552 df-f1 6553 df-fo 6554 df-f1o 6555 df-fv 6556 df-riota 7376 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7871 df-1st 7993 df-2nd 7994 df-frecs 8287 df-wrecs 8318 df-recs 8392 df-rdg 8431 df-1o 8487 df-er 8725 df-map 8847 df-ixp 8917 df-en 8965 df-dom 8966 df-sdom 8967 df-fin 8968 df-sup 9466 df-pnf 11281 df-mnf 11282 df-xr 11283 df-ltxr 11284 df-le 11285 df-sub 11477 df-neg 11478 df-nn 12244 df-2 12306 df-3 12307 df-4 12308 df-5 12309 df-6 12310 df-7 12311 df-8 12312 df-9 12313 df-n0 12504 df-z 12590 df-dec 12709 df-uz 12854 df-fz 13518 df-struct 17116 df-slot 17151 df-ndx 17163 df-base 17181 df-plusg 17246 df-mulr 17247 df-sca 17249 df-vsca 17250 df-ip 17251 df-tset 17252 df-ple 17253 df-ds 17255 df-hom 17257 df-cco 17258 df-prds 17429

This theorem is referenced by: prdsmulrfval 17458 pwsmulrval 17473 xpsmul 17557 prdsmulrngcl 20115 prdsrngd 20116 prdsringd 20257

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