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Theorem rabeqdv 2654
Description: Equality of restricted class abstractions. Deduction form of rabeq 2652. (Contributed by Glauco Siliprandi, 5-Apr-2020.)
Hypothesis
Ref Expression
rabeqdv.1 (𝜑𝐴 = 𝐵)
Assertion
Ref Expression
rabeqdv (𝜑 → {𝑥𝐴𝜓} = {𝑥𝐵𝜓})
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝜑,𝑥
Allowed substitution hint:   𝜓(𝑥)

Proof of Theorem rabeqdv
StepHypRef Expression
1 rabeqdv.1 . 2 (𝜑𝐴 = 𝐵)
2 rabeq 2652 . 2 (𝐴 = 𝐵 → {𝑥𝐴𝜓} = {𝑥𝐵𝜓})
31, 2syl 14 1 (𝜑 → {𝑥𝐴𝜓} = {𝑥𝐵𝜓})
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1316  {crab 2397
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 683  ax-5 1408  ax-7 1409  ax-gen 1410  ax-ie1 1454  ax-ie2 1455  ax-8 1467  ax-10 1468  ax-11 1469  ax-i12 1470  ax-bndl 1471  ax-4 1472  ax-17 1491  ax-i9 1495  ax-ial 1499  ax-i5r 1500  ax-ext 2099
This theorem depends on definitions:  df-bi 116  df-tru 1319  df-nf 1422  df-sb 1721  df-clab 2104  df-cleq 2110  df-clel 2113  df-nfc 2247  df-rab 2402
This theorem is referenced by:  dfphi2  11823  cncfval  12655  reldvg  12744  dvfvalap  12746
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