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Theorem ocvfval 21555
Description: The orthocomplement operation. (Contributed by NM, 7-Oct-2011.) (Revised by Mario Carneiro, 13-Oct-2015.)
Hypotheses
Ref Expression
ocvfval.v 𝑉 = (Baseβ€˜π‘Š)
ocvfval.i , = (Β·π‘–β€˜π‘Š)
ocvfval.f 𝐹 = (Scalarβ€˜π‘Š)
ocvfval.z 0 = (0gβ€˜πΉ)
ocvfval.o βŠ₯ = (ocvβ€˜π‘Š)
Assertion
Ref Expression
ocvfval (π‘Š ∈ 𝑋 β†’ βŠ₯ = (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }))
Distinct variable groups:   π‘₯,𝑠,𝑦, 0   𝑉,𝑠,π‘₯,𝑦   π‘Š,𝑠,π‘₯,𝑦   , ,𝑠,π‘₯,𝑦
Allowed substitution hints:   𝐹(π‘₯,𝑦,𝑠)   βŠ₯ (π‘₯,𝑦,𝑠)   𝑋(π‘₯,𝑦,𝑠)

Proof of Theorem ocvfval
Dummy variable β„Ž is distinct from all other variables.
StepHypRef Expression
1 ocvfval.o . 2 βŠ₯ = (ocvβ€˜π‘Š)
2 elex 3487 . . 3 (π‘Š ∈ 𝑋 β†’ π‘Š ∈ V)
3 fveq2 6884 . . . . . . 7 (β„Ž = π‘Š β†’ (Baseβ€˜β„Ž) = (Baseβ€˜π‘Š))
4 ocvfval.v . . . . . . 7 𝑉 = (Baseβ€˜π‘Š)
53, 4eqtr4di 2784 . . . . . 6 (β„Ž = π‘Š β†’ (Baseβ€˜β„Ž) = 𝑉)
65pweqd 4614 . . . . 5 (β„Ž = π‘Š β†’ 𝒫 (Baseβ€˜β„Ž) = 𝒫 𝑉)
7 fveq2 6884 . . . . . . . . . 10 (β„Ž = π‘Š β†’ (Β·π‘–β€˜β„Ž) = (Β·π‘–β€˜π‘Š))
8 ocvfval.i . . . . . . . . . 10 , = (Β·π‘–β€˜π‘Š)
97, 8eqtr4di 2784 . . . . . . . . 9 (β„Ž = π‘Š β†’ (Β·π‘–β€˜β„Ž) = , )
109oveqd 7421 . . . . . . . 8 (β„Ž = π‘Š β†’ (π‘₯(Β·π‘–β€˜β„Ž)𝑦) = (π‘₯ , 𝑦))
11 fveq2 6884 . . . . . . . . . . 11 (β„Ž = π‘Š β†’ (Scalarβ€˜β„Ž) = (Scalarβ€˜π‘Š))
12 ocvfval.f . . . . . . . . . . 11 𝐹 = (Scalarβ€˜π‘Š)
1311, 12eqtr4di 2784 . . . . . . . . . 10 (β„Ž = π‘Š β†’ (Scalarβ€˜β„Ž) = 𝐹)
1413fveq2d 6888 . . . . . . . . 9 (β„Ž = π‘Š β†’ (0gβ€˜(Scalarβ€˜β„Ž)) = (0gβ€˜πΉ))
15 ocvfval.z . . . . . . . . 9 0 = (0gβ€˜πΉ)
1614, 15eqtr4di 2784 . . . . . . . 8 (β„Ž = π‘Š β†’ (0gβ€˜(Scalarβ€˜β„Ž)) = 0 )
1710, 16eqeq12d 2742 . . . . . . 7 (β„Ž = π‘Š β†’ ((π‘₯(Β·π‘–β€˜β„Ž)𝑦) = (0gβ€˜(Scalarβ€˜β„Ž)) ↔ (π‘₯ , 𝑦) = 0 ))
1817ralbidv 3171 . . . . . 6 (β„Ž = π‘Š β†’ (βˆ€π‘¦ ∈ 𝑠 (π‘₯(Β·π‘–β€˜β„Ž)𝑦) = (0gβ€˜(Scalarβ€˜β„Ž)) ↔ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 ))
195, 18rabeqbidv 3443 . . . . 5 (β„Ž = π‘Š β†’ {π‘₯ ∈ (Baseβ€˜β„Ž) ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯(Β·π‘–β€˜β„Ž)𝑦) = (0gβ€˜(Scalarβ€˜β„Ž))} = {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 })
206, 19mpteq12dv 5232 . . . 4 (β„Ž = π‘Š β†’ (𝑠 ∈ 𝒫 (Baseβ€˜β„Ž) ↦ {π‘₯ ∈ (Baseβ€˜β„Ž) ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯(Β·π‘–β€˜β„Ž)𝑦) = (0gβ€˜(Scalarβ€˜β„Ž))}) = (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }))
21 df-ocv 21552 . . . 4 ocv = (β„Ž ∈ V ↦ (𝑠 ∈ 𝒫 (Baseβ€˜β„Ž) ↦ {π‘₯ ∈ (Baseβ€˜β„Ž) ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯(Β·π‘–β€˜β„Ž)𝑦) = (0gβ€˜(Scalarβ€˜β„Ž))}))
22 eqid 2726 . . . . . 6 (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }) = (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 })
234fvexi 6898 . . . . . . . 8 𝑉 ∈ V
24 ssrab2 4072 . . . . . . . 8 {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 } βŠ† 𝑉
2523, 24elpwi2 5339 . . . . . . 7 {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 } ∈ 𝒫 𝑉
2625a1i 11 . . . . . 6 (𝑠 ∈ 𝒫 𝑉 β†’ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 } ∈ 𝒫 𝑉)
2722, 26fmpti 7106 . . . . 5 (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }):𝒫 π‘‰βŸΆπ’« 𝑉
2823pwex 5371 . . . . 5 𝒫 𝑉 ∈ V
29 fex2 7920 . . . . 5 (((𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }):𝒫 π‘‰βŸΆπ’« 𝑉 ∧ 𝒫 𝑉 ∈ V ∧ 𝒫 𝑉 ∈ V) β†’ (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }) ∈ V)
3027, 28, 28, 29mp3an 1457 . . . 4 (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }) ∈ V
3120, 21, 30fvmpt 6991 . . 3 (π‘Š ∈ V β†’ (ocvβ€˜π‘Š) = (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }))
322, 31syl 17 . 2 (π‘Š ∈ 𝑋 β†’ (ocvβ€˜π‘Š) = (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }))
331, 32eqtrid 2778 1 (π‘Š ∈ 𝑋 β†’ βŠ₯ = (𝑠 ∈ 𝒫 𝑉 ↦ {π‘₯ ∈ 𝑉 ∣ βˆ€π‘¦ ∈ 𝑠 (π‘₯ , 𝑦) = 0 }))
Colors of variables: wff setvar class
Syntax hints:   β†’ wi 4   = wceq 1533   ∈ wcel 2098  βˆ€wral 3055  {crab 3426  Vcvv 3468  π’« cpw 4597   ↦ cmpt 5224  βŸΆwf 6532  β€˜cfv 6536  (class class class)co 7404  Basecbs 17151  Scalarcsca 17207  Β·π‘–cip 17209  0gc0g 17392  ocvcocv 21549
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-10 2129  ax-11 2146  ax-12 2163  ax-ext 2697  ax-sep 5292  ax-nul 5299  ax-pow 5356  ax-pr 5420  ax-un 7721
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 845  df-3an 1086  df-tru 1536  df-fal 1546  df-ex 1774  df-nf 1778  df-sb 2060  df-mo 2528  df-eu 2557  df-clab 2704  df-cleq 2718  df-clel 2804  df-nfc 2879  df-ne 2935  df-ral 3056  df-rex 3065  df-rab 3427  df-v 3470  df-dif 3946  df-un 3948  df-in 3950  df-ss 3960  df-nul 4318  df-if 4524  df-pw 4599  df-sn 4624  df-pr 4626  df-op 4630  df-uni 4903  df-br 5142  df-opab 5204  df-mpt 5225  df-id 5567  df-xp 5675  df-rel 5676  df-cnv 5677  df-co 5678  df-dm 5679  df-rn 5680  df-res 5681  df-ima 5682  df-iota 6488  df-fun 6538  df-fn 6539  df-f 6540  df-fv 6544  df-ov 7407  df-ocv 21552
This theorem is referenced by:  ocvval  21556  elocv  21557
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