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Theorem ssrab3 3323
Description: Subclass relation for a restricted class abstraction. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.)
Hypothesis
Ref Expression
ssrab3.1 𝐵 = {𝑥𝐴𝜑}
Assertion
Ref Expression
ssrab3 𝐵𝐴
Distinct variable group:   𝑥,𝐴
Allowed substitution hints:   𝜑(𝑥)   𝐵(𝑥)

Proof of Theorem ssrab3
StepHypRef Expression
1 ssrab3.1 . 2 𝐵 = {𝑥𝐴𝜑}
2 ssrab2 3322 . 2 {𝑥𝐴𝜑} ⊆ 𝐴
31, 2eqsstri 3269 1 𝐵𝐴
Colors of variables: wff set class
Syntax hints:   = wceq 1398  {crab 2524  wss 3210
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2214
This theorem depends on definitions:  df-bi 117  df-nf 1510  df-sb 1812  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-rab 2529  df-in 3216  df-ss 3223
This theorem is referenced by:  if0ss  3623  pcprecl  12983  pcprendvds  12984  4sqlem13m  13097  4sqlem14  13098  4sqlem17  13101  nmzsubg  13919  nmznsg  13922  conjnmz  13988  conjnmzb  13989  nzrring  14320  lringnzr  14330  rrgeq0  14402  rrgss  14404  psrbagconf1o  14820  mpodvdsmulf1o  15850  fsumdvdsmul  15851  lgsfcl2  15871
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