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Theorem pwsval 17114
Description: Value of a structure power. (Contributed by Mario Carneiro, 11-Jan-2015.)
Hypotheses
Ref Expression
pwsval.y 𝑌 = (𝑅s 𝐼)
pwsval.f 𝐹 = (Scalar‘𝑅)
Assertion
Ref Expression
pwsval ((𝑅𝑉𝐼𝑊) → 𝑌 = (𝐹Xs(𝐼 × {𝑅})))

Proof of Theorem pwsval
Dummy variables 𝑖 𝑟 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 pwsval.y . 2 𝑌 = (𝑅s 𝐼)
2 elex 3440 . . 3 (𝑅𝑉𝑅 ∈ V)
3 elex 3440 . . 3 (𝐼𝑊𝐼 ∈ V)
4 simpl 482 . . . . . . 7 ((𝑟 = 𝑅𝑖 = 𝐼) → 𝑟 = 𝑅)
54fveq2d 6760 . . . . . 6 ((𝑟 = 𝑅𝑖 = 𝐼) → (Scalar‘𝑟) = (Scalar‘𝑅))
6 pwsval.f . . . . . 6 𝐹 = (Scalar‘𝑅)
75, 6eqtr4di 2797 . . . . 5 ((𝑟 = 𝑅𝑖 = 𝐼) → (Scalar‘𝑟) = 𝐹)
8 id 22 . . . . . 6 (𝑖 = 𝐼𝑖 = 𝐼)
9 sneq 4568 . . . . . 6 (𝑟 = 𝑅 → {𝑟} = {𝑅})
10 xpeq12 5605 . . . . . 6 ((𝑖 = 𝐼 ∧ {𝑟} = {𝑅}) → (𝑖 × {𝑟}) = (𝐼 × {𝑅}))
118, 9, 10syl2anr 596 . . . . 5 ((𝑟 = 𝑅𝑖 = 𝐼) → (𝑖 × {𝑟}) = (𝐼 × {𝑅}))
127, 11oveq12d 7273 . . . 4 ((𝑟 = 𝑅𝑖 = 𝐼) → ((Scalar‘𝑟)Xs(𝑖 × {𝑟})) = (𝐹Xs(𝐼 × {𝑅})))
13 df-pws 17077 . . . 4 s = (𝑟 ∈ V, 𝑖 ∈ V ↦ ((Scalar‘𝑟)Xs(𝑖 × {𝑟})))
14 ovex 7288 . . . 4 (𝐹Xs(𝐼 × {𝑅})) ∈ V
1512, 13, 14ovmpoa 7406 . . 3 ((𝑅 ∈ V ∧ 𝐼 ∈ V) → (𝑅s 𝐼) = (𝐹Xs(𝐼 × {𝑅})))
162, 3, 15syl2an 595 . 2 ((𝑅𝑉𝐼𝑊) → (𝑅s 𝐼) = (𝐹Xs(𝐼 × {𝑅})))
171, 16eqtrid 2790 1 ((𝑅𝑉𝐼𝑊) → 𝑌 = (𝐹Xs(𝐼 × {𝑅})))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1539  wcel 2108  Vcvv 3422  {csn 4558   × cxp 5578  cfv 6418  (class class class)co 7255  Scalarcsca 16891  Xscprds 17073  s cpws 17074
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pr 5347
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ral 3068  df-rex 3069  df-rab 3072  df-v 3424  df-sbc 3712  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-br 5071  df-opab 5133  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-iota 6376  df-fun 6420  df-fv 6426  df-ov 7258  df-oprab 7259  df-mpo 7260  df-pws 17077
This theorem is referenced by:  pwsbas  17115  pwsplusgval  17118  pwsmulrval  17119  pwsle  17120  pwsvscafval  17122  pwssca  17124  pwsmnd  18335  pws0g  18336  pwspjmhm  18383  pwsgrp  18602  pwsinvg  18603  pwscmn  19379  pwsabl  19380  pwsgsum  19498  pwsring  19769  pws1  19770  pwscrng  19771  pwsmgp  19772  pwslmod  20147  frlmpws  20867  frlmlss  20868  frlmpwsfi  20869  frlmbas  20872  frlmip  20895  pwstps  22689  resspwsds  23433  pwsxms  23594  pwsms  23595  rrxprds  24458  cnpwstotbnd  35882  repwsmet  35919  rrnequiv  35920
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