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Theorem ssralv 3291
Description: Quantification restricted to a subclass. (Contributed by NM, 11-Mar-2006.)
Assertion
Ref Expression
ssralv  |-  ( A 
C_  B  ->  ( A. x  e.  B  ph 
->  A. x  e.  A  ph ) )
Distinct variable groups:    x, A    x, B
Allowed substitution hint:    ph( x)

Proof of Theorem ssralv
StepHypRef Expression
1 ssel 3221 . . 3  |-  ( A 
C_  B  ->  (
x  e.  A  ->  x  e.  B )
)
21imim1d 75 . 2  |-  ( A 
C_  B  ->  (
( x  e.  B  ->  ph )  ->  (
x  e.  A  ->  ph ) ) )
32ralimdv2 2602 1  |-  ( A 
C_  B  ->  ( A. x  e.  B  ph 
->  A. x  e.  A  ph ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2202   A.wral 2510    C_ wss 3200
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-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-11 1554  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-ext 2213
This theorem depends on definitions:  df-bi 117  df-nf 1509  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-ral 2515  df-in 3206  df-ss 3213
This theorem is referenced by:  iinss1  3982  poss  4395  sess2  4435  trssord  4477  funco  5366  funimaexglem  5413  isores3  5956  isoini2  5960  smores  6458  smores2  6460  tfrlem5  6480  resixp  6902  ac6sfi  7087  difinfinf  7300  peano5nnnn  8112  peano5nni  9146  caucvgre  11559  rexanuz  11566  cau3lem  11692  isumclim3  12002  fsumiun  12056  pcfac  12941  ctinf  13069  strsetsid  13133  imasaddfnlemg  13415  tgcn  14951  tgcnp  14952  cnss2  14970  cncnp  14973  sslm  14990  metrest  15249  rescncf  15324  suplociccex  15368  limcresi  15409  uspgr2wlkeq  16235  nninfsellemeq  16667
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