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Theorem ralrot3 3102
Description: Rotate three restricted universal quantifiers. (Contributed by AV, 3-Dec-2021.)
Assertion
Ref Expression
ralrot3  |-  ( A. x  e.  A  A. y  e.  B  A. z  e.  C  ph  <->  A. z  e.  C  A. x  e.  A  A. y  e.  B  ph )
Distinct variable groups:    z, A    z, B    x, y, C   
x, z, y
Allowed substitution hints:    ph( x, y, z)    A( x, y)    B( x, y)    C( z)

Proof of Theorem ralrot3
StepHypRef Expression
1 ralcom 3098 . . 3  |-  ( A. y  e.  B  A. z  e.  C  ph  <->  A. z  e.  C  A. y  e.  B  ph )
21ralbii 2980 . 2  |-  ( A. x  e.  A  A. y  e.  B  A. z  e.  C  ph  <->  A. x  e.  A  A. z  e.  C  A. y  e.  B  ph )
3 ralcom 3098 . 2  |-  ( A. x  e.  A  A. z  e.  C  A. y  e.  B  ph  <->  A. z  e.  C  A. x  e.  A  A. y  e.  B  ph )
42, 3bitri 264 1  |-  ( A. x  e.  A  A. y  e.  B  A. z  e.  C  ph  <->  A. z  e.  C  A. x  e.  A  A. y  e.  B  ph )
Colors of variables: wff setvar class
Syntax hints:    <-> wb 196   A.wral 2912
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-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ral 2917
This theorem is referenced by:  rmodislmodlem  18930  rmodislmod  18931
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