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Theorem mpov 5913
Description: Operation with universal domain in maps-to notation. (Contributed by NM, 16-Aug-2013.)
Assertion
Ref Expression
mpov  |-  ( x  e.  _V ,  y  e.  _V  |->  C )  =  { <. <. x ,  y >. ,  z
>.  |  z  =  C }
Distinct variable groups:    x, z    y,
z    z, C
Allowed substitution hints:    C( x, y)

Proof of Theorem mpov
StepHypRef Expression
1 df-mpo 5831 . 2  |-  ( x  e.  _V ,  y  e.  _V  |->  C )  =  { <. <. x ,  y >. ,  z
>.  |  ( (
x  e.  _V  /\  y  e.  _V )  /\  z  =  C
) }
2 vex 2715 . . . . 5  |-  x  e. 
_V
3 vex 2715 . . . . 5  |-  y  e. 
_V
42, 3pm3.2i 270 . . . 4  |-  ( x  e.  _V  /\  y  e.  _V )
54biantrur 301 . . 3  |-  ( z  =  C  <->  ( (
x  e.  _V  /\  y  e.  _V )  /\  z  =  C
) )
65oprabbii 5878 . 2  |-  { <. <.
x ,  y >. ,  z >.  |  z  =  C }  =  { <. <. x ,  y
>. ,  z >.  |  ( ( x  e. 
_V  /\  y  e.  _V )  /\  z  =  C ) }
71, 6eqtr4i 2181 1  |-  ( x  e.  _V ,  y  e.  _V  |->  C )  =  { <. <. x ,  y >. ,  z
>.  |  z  =  C }
Colors of variables: wff set class
Syntax hints:    /\ wa 103    = wceq 1335    e. wcel 2128   _Vcvv 2712   {coprab 5827    e. cmpo 5828
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 1427  ax-7 1428  ax-gen 1429  ax-ie1 1473  ax-ie2 1474  ax-8 1484  ax-11 1486  ax-4 1490  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2139
This theorem depends on definitions:  df-bi 116  df-tru 1338  df-nf 1441  df-sb 1743  df-clab 2144  df-cleq 2150  df-clel 2153  df-v 2714  df-oprab 5830  df-mpo 5831
This theorem is referenced by: (None)
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