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Theorem ssrab3 3270
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 3269 . 2 {𝑥𝐴𝜑} ⊆ 𝐴
31, 2eqsstri 3216 1 𝐵𝐴
Colors of variables: wff set class
Syntax hints:   = wceq 1364  {crab 2479  wss 3157
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 710  ax-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-ext 2178
This theorem depends on definitions:  df-bi 117  df-nf 1475  df-sb 1777  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-rab 2484  df-in 3163  df-ss 3170
This theorem is referenced by:  pcprecl  12468  pcprendvds  12469  4sqlem13m  12582  4sqlem14  12583  4sqlem17  12586  nmzsubg  13350  nmznsg  13353  conjnmz  13419  conjnmzb  13420  nzrring  13749  lringnzr  13759  rrgeq0  13831  rrgss  13832  mpodvdsmulf1o  15236  fsumdvdsmul  15237  lgsfcl2  15257
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