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Theorem dfrn6 36365
Description: Alternate definition of range. (Contributed by Peter Mazsa, 1-Aug-2018.)
Assertion
Ref Expression
dfrn6 ran 𝑅 = {𝑥 ∣ [𝑥]𝑅 ≠ ∅}
Distinct variable group:   𝑥,𝑅

Proof of Theorem dfrn6
StepHypRef Expression
1 df-rn 5591 . 2 ran 𝑅 = dom 𝑅
2 dfdm6 36364 . 2 dom 𝑅 = {𝑥 ∣ [𝑥]𝑅 ≠ ∅}
31, 2eqtri 2766 1 ran 𝑅 = {𝑥 ∣ [𝑥]𝑅 ≠ ∅}
Colors of variables: wff setvar class
Syntax hints:   = wceq 1539  {cab 2715  wne 2942  c0 4253  ccnv 5579  dom cdm 5580  ran crn 5581  [cec 8454
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-clab 2716  df-cleq 2730  df-clel 2817  df-ne 2943  df-ral 3068  df-rex 3069  df-rab 3072  df-v 3424  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-br 5071  df-opab 5133  df-xp 5586  df-cnv 5588  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-ec 8458
This theorem is referenced by:  rnxrn  36451
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