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Theorem resid 5379
 Description: Any relation restricted to the universe is itself. (Contributed by NM, 16-Mar-2004.)
Assertion
Ref Expression
resid (Rel 𝐴 → (𝐴 ↾ V) = 𝐴)

Proof of Theorem resid
StepHypRef Expression
1 ssv 3588 . 2 dom 𝐴 ⊆ V
2 relssres 5357 . 2 ((Rel 𝐴 ∧ dom 𝐴 ⊆ V) → (𝐴 ↾ V) = 𝐴)
31, 2mpan2 703 1 (Rel 𝐴 → (𝐴 ↾ V) = 𝐴)
 Colors of variables: wff setvar class Syntax hints:   → wi 4   = wceq 1475  Vcvv 3173   ⊆ wss 3540  dom cdm 5038   ↾ cres 5040  Rel wrel 5043 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4709  ax-nul 4717  ax-pr 4833 This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ral 2901  df-rex 2902  df-rab 2905  df-v 3175  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-sn 4126  df-pr 4128  df-op 4132  df-br 4584  df-opab 4644  df-xp 5044  df-rel 5045  df-dm 5048  df-res 5050 This theorem is referenced by: (None)
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