ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  ralrimivvva Unicode version

Theorem ralrimivvva 2452
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 1163 . . . 4  |-  ( ( ( ( ph  /\  x  e.  A )  /\  y  e.  B
)  /\  z  e.  C )  ->  ps )
32ralrimiva 2442 . . 3  |-  ( ( ( ph  /\  x  e.  A )  /\  y  e.  B )  ->  A. z  e.  C  ps )
43ralrimiva 2442 . 2  |-  ( (
ph  /\  x  e.  A )  ->  A. y  e.  B  A. z  e.  C  ps )
54ralrimiva 2442 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 102    /\ w3a 922    e. wcel 1436   A.wral 2355
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-5 1379  ax-gen 1381  ax-4 1443  ax-17 1462
This theorem depends on definitions:  df-bi 115  df-3an 924  df-nf 1393  df-ral 2360
This theorem is referenced by:  ispod  4105  swopolem  4106  ordwe  4364  wessep  4366  isopolem  5562  caovassg  5760  caovcang  5763  caovordig  5767  caovordg  5769  caovdig  5776  caovdirg  5779  caoftrn  5837
  Copyright terms: Public domain W3C validator