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Theorem relelbasov 13168
Description: Utility theorem: reverse closure for any structure defined as a two-argument function. (Contributed by Mario Carneiro, 3-Oct-2015.)
Hypotheses
Ref Expression
elbasov.o Rel dom 𝑂
relelbasov.r Rel 𝑂
elbasov.s 𝑆 = (𝑋𝑂𝑌)
elbasov.b 𝐵 = (Base‘𝑆)
Assertion
Ref Expression
relelbasov (𝐴𝐵 → (𝑋 ∈ V ∧ 𝑌 ∈ V))

Proof of Theorem relelbasov
Dummy variable 𝑗 is distinct from all other variables.
StepHypRef Expression
1 elbasov.b . . 3 𝐵 = (Base‘𝑆)
21basm 13167 . 2 (𝐴𝐵 → ∃𝑗 𝑗𝑆)
3 elbasov.o . . . . 5 Rel dom 𝑂
4 df-rel 4734 . . . . 5 (Rel dom 𝑂 ↔ dom 𝑂 ⊆ (V × V))
53, 4mpbi 145 . . . 4 dom 𝑂 ⊆ (V × V)
6 relelbasov.r . . . . 5 Rel 𝑂
7 simpr 110 . . . . . . 7 ((𝐴𝐵𝑗𝑆) → 𝑗𝑆)
8 elbasov.s . . . . . . 7 𝑆 = (𝑋𝑂𝑌)
97, 8eleqtrdi 2323 . . . . . 6 ((𝐴𝐵𝑗𝑆) → 𝑗 ∈ (𝑋𝑂𝑌))
10 df-ov 6026 . . . . . 6 (𝑋𝑂𝑌) = (𝑂‘⟨𝑋, 𝑌⟩)
119, 10eleqtrdi 2323 . . . . 5 ((𝐴𝐵𝑗𝑆) → 𝑗 ∈ (𝑂‘⟨𝑋, 𝑌⟩))
12 relelfvdm 5674 . . . . 5 ((Rel 𝑂𝑗 ∈ (𝑂‘⟨𝑋, 𝑌⟩)) → ⟨𝑋, 𝑌⟩ ∈ dom 𝑂)
136, 11, 12sylancr 414 . . . 4 ((𝐴𝐵𝑗𝑆) → ⟨𝑋, 𝑌⟩ ∈ dom 𝑂)
145, 13sselid 3224 . . 3 ((𝐴𝐵𝑗𝑆) → ⟨𝑋, 𝑌⟩ ∈ (V × V))
15 opelxp 4757 . . 3 (⟨𝑋, 𝑌⟩ ∈ (V × V) ↔ (𝑋 ∈ V ∧ 𝑌 ∈ V))
1614, 15sylib 122 . 2 ((𝐴𝐵𝑗𝑆) → (𝑋 ∈ V ∧ 𝑌 ∈ V))
172, 16exlimddv 1946 1 (𝐴𝐵 → (𝑋 ∈ V ∧ 𝑌 ∈ V))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1397  wcel 2201  Vcvv 2801  wss 3199  cop 3673   × cxp 4725  dom cdm 4727  Rel wrel 4732  cfv 5328  (class class class)co 6023  Basecbs 13105
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2203  ax-14 2204  ax-ext 2212  ax-sep 4208  ax-pow 4266  ax-pr 4301  ax-un 4532  ax-cnex 8128  ax-resscn 8129  ax-1re 8131  ax-addrcl 8134
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1810  df-eu 2081  df-mo 2082  df-clab 2217  df-cleq 2223  df-clel 2226  df-nfc 2362  df-ral 2514  df-rex 2515  df-v 2803  df-sbc 3031  df-un 3203  df-in 3205  df-ss 3212  df-pw 3655  df-sn 3676  df-pr 3677  df-op 3679  df-uni 3895  df-int 3930  df-br 4090  df-opab 4152  df-mpt 4153  df-id 4392  df-xp 4733  df-rel 4734  df-cnv 4735  df-co 4736  df-dm 4737  df-rn 4738  df-res 4739  df-iota 5288  df-fun 5330  df-fn 5331  df-fv 5336  df-ov 6026  df-inn 9149  df-ndx 13108  df-slot 13109  df-base 13111
This theorem is referenced by:  psrelbas  14718  psradd  14722  psraddcl  14723  mplrcl  14737  mplbasss  14739  mpladd  14747
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