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Theorem ssrab3 3314
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 3313 . 2 {𝑥𝐴𝜑} ⊆ 𝐴
31, 2eqsstri 3260 1 𝐵𝐴
Colors of variables: wff set class
Syntax hints:   = wceq 1398  {crab 2515  wss 3201
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 2213
This theorem depends on definitions:  df-bi 117  df-nf 1510  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-rab 2520  df-in 3207  df-ss 3214
This theorem is referenced by:  if0ss  3611  pcprecl  12923  pcprendvds  12924  4sqlem13m  13037  4sqlem14  13038  4sqlem17  13041  nmzsubg  13858  nmznsg  13861  conjnmz  13927  conjnmzb  13928  nzrring  14259  lringnzr  14269  rrgeq0  14341  rrgss  14342  psrbagconf1o  14754  mpodvdsmulf1o  15784  fsumdvdsmul  15785  lgsfcl2  15805
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