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Theorem relelbasov 13138
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 13137 . 2 (𝐴𝐵 → ∃𝑗 𝑗𝑆)
3 elbasov.o . . . . 5 Rel dom 𝑂
4 df-rel 4730 . . . . 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 2322 . . . . . 6 ((𝐴𝐵𝑗𝑆) → 𝑗 ∈ (𝑋𝑂𝑌))
10 df-ov 6016 . . . . . 6 (𝑋𝑂𝑌) = (𝑂‘⟨𝑋, 𝑌⟩)
119, 10eleqtrdi 2322 . . . . 5 ((𝐴𝐵𝑗𝑆) → 𝑗 ∈ (𝑂‘⟨𝑋, 𝑌⟩))
12 relelfvdm 5667 . . . . 5 ((Rel 𝑂𝑗 ∈ (𝑂‘⟨𝑋, 𝑌⟩)) → ⟨𝑋, 𝑌⟩ ∈ dom 𝑂)
136, 11, 12sylancr 414 . . . 4 ((𝐴𝐵𝑗𝑆) → ⟨𝑋, 𝑌⟩ ∈ dom 𝑂)
145, 13sselid 3223 . . 3 ((𝐴𝐵𝑗𝑆) → ⟨𝑋, 𝑌⟩ ∈ (V × V))
15 opelxp 4753 . . 3 (⟨𝑋, 𝑌⟩ ∈ (V × V) ↔ (𝑋 ∈ V ∧ 𝑌 ∈ V))
1614, 15sylib 122 . 2 ((𝐴𝐵𝑗𝑆) → (𝑋 ∈ V ∧ 𝑌 ∈ V))
172, 16exlimddv 1945 1 (𝐴𝐵 → (𝑋 ∈ V ∧ 𝑌 ∈ V))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1395  wcel 2200  Vcvv 2800  wss 3198  cop 3670   × cxp 4721  dom cdm 4723  Rel wrel 4728  cfv 5324  (class class class)co 6013  Basecbs 13075
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 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4205  ax-pow 4262  ax-pr 4297  ax-un 4528  ax-cnex 8116  ax-resscn 8117  ax-1re 8119  ax-addrcl 8122
This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2802  df-sbc 3030  df-un 3202  df-in 3204  df-ss 3211  df-pw 3652  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-int 3927  df-br 4087  df-opab 4149  df-mpt 4150  df-id 4388  df-xp 4729  df-rel 4730  df-cnv 4731  df-co 4732  df-dm 4733  df-rn 4734  df-res 4735  df-iota 5284  df-fun 5326  df-fn 5327  df-fv 5332  df-ov 6016  df-inn 9137  df-ndx 13078  df-slot 13079  df-base 13081
This theorem is referenced by:  psrelbas  14682  psradd  14686  psraddcl  14687  mplrcl  14701  mplbasss  14703  mpladd  14711
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