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Theorem ralrimivvva 2490
Description: Inference from Theorem 19.21 of [Margaris] p. 90. (Restricted quantifier version with triple quantification.) (Contributed by Mario Carneiro, 9-Jul-2014.)
Hypothesis
Ref Expression
ralrimivvva.1  |-  ( (
ph  /\  ( x  e.  A  /\  y  e.  B  /\  z  e.  C ) )  ->  ps )
Assertion
Ref Expression
ralrimivvva  |-  ( ph  ->  A. x  e.  A  A. y  e.  B  A. z  e.  C  ps )
Distinct variable groups:    ph, x, y, z    y, A, z   
z, B
Allowed substitution hints:    ps( x, y, z)    A( x)    B( x, y)    C( x, y, z)

Proof of Theorem ralrimivvva
StepHypRef Expression
1 ralrimivvva.1 . . . . 5  |-  ( (
ph  /\  ( x  e.  A  /\  y  e.  B  /\  z  e.  C ) )  ->  ps )
213anassrs 1190 . . . 4  |-  ( ( ( ( ph  /\  x  e.  A )  /\  y  e.  B
)  /\  z  e.  C )  ->  ps )
32ralrimiva 2480 . . 3  |-  ( ( ( ph  /\  x  e.  A )  /\  y  e.  B )  ->  A. z  e.  C  ps )
43ralrimiva 2480 . 2  |-  ( (
ph  /\  x  e.  A )  ->  A. y  e.  B  A. z  e.  C  ps )
54ralrimiva 2480 1  |-  ( ph  ->  A. x  e.  A  A. y  e.  B  A. z  e.  C  ps )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    /\ w3a 945    e. wcel 1463   A.wral 2391
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1406  ax-gen 1408  ax-4 1470  ax-17 1489
This theorem depends on definitions:  df-bi 116  df-3an 947  df-nf 1420  df-ral 2396
This theorem is referenced by:  ispod  4194  swopolem  4195  ordwe  4458  wessep  4460  isopolem  5689  caovassg  5895  caovcang  5898  caovordig  5902  caovordg  5904  caovdig  5911  caovdirg  5914  caoftrn  5973
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