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Theorem prpssnq 9812
Description: A positive real is a subset of the positive fractions. (Contributed by NM, 29-Feb-1996.) (Revised by Mario Carneiro, 11-May-2013.) (New usage is discouraged.)
Assertion
Ref Expression
prpssnq  |-  ( A  e.  P.  ->  A  C. 
Q. )

Proof of Theorem prpssnq
Dummy variables  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 elnpi 9810 . 2  |-  ( A  e.  P.  <->  ( ( A  e.  _V  /\  (/)  C.  A  /\  A  C.  Q. )  /\  A. x  e.  A  ( A. y ( y 
<Q  x  ->  y  e.  A )  /\  E. y  e.  A  x  <Q  y ) ) )
2 simpl3 1066 . 2  |-  ( ( ( A  e.  _V  /\  (/)  C.  A  /\  A  C. 
Q. )  /\  A. x  e.  A  ( A. y ( y  <Q  x  ->  y  e.  A
)  /\  E. y  e.  A  x  <Q  y ) )  ->  A  C. 
Q. )
31, 2sylbi 207 1  |-  ( A  e.  P.  ->  A  C. 
Q. )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 384    /\ w3a 1037   A.wal 1481    e. wcel 1990   A.wral 2912   E.wrex 2913   _Vcvv 3200    C. wpss 3575   (/)c0 3915   class class class wbr 4653   Q.cnq 9674    <Q cltq 9680   P.cnp 9681
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-v 3202  df-in 3581  df-ss 3588  df-pss 3590  df-np 9803
This theorem is referenced by:  elprnq  9813  npomex  9818  genpnnp  9827  prlem934  9855  ltexprlem2  9859  reclem2pr  9870  suplem1pr  9874  wuncn  9991
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