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Theorem nmval 18112
Description: The value of the norm function. (Contributed by Mario Carneiro, 2-Oct-2015.)
Hypotheses
Ref Expression
nmfval.n  |-  N  =  ( norm `  W
)
nmfval.x  |-  X  =  ( Base `  W
)
nmfval.z  |-  .0.  =  ( 0g `  W )
nmfval.d  |-  D  =  ( dist `  W
)
Assertion
Ref Expression
nmval  |-  ( A  e.  X  ->  ( N `  A )  =  ( A D  .0.  ) )

Proof of Theorem nmval
Dummy variable  x is distinct from all other variables.
StepHypRef Expression
1 oveq1 5865 . 2  |-  ( x  =  A  ->  (
x D  .0.  )  =  ( A D  .0.  ) )
2 nmfval.n . . 3  |-  N  =  ( norm `  W
)
3 nmfval.x . . 3  |-  X  =  ( Base `  W
)
4 nmfval.z . . 3  |-  .0.  =  ( 0g `  W )
5 nmfval.d . . 3  |-  D  =  ( dist `  W
)
62, 3, 4, 5nmfval 18111 . 2  |-  N  =  ( x  e.  X  |->  ( x D  .0.  ) )
7 ovex 5883 . 2  |-  ( A D  .0.  )  e. 
_V
81, 6, 7fvmpt 5602 1  |-  ( A  e.  X  ->  ( N `  A )  =  ( A D  .0.  ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1623    e. wcel 1684   ` cfv 5255  (class class class)co 5858   Basecbs 13148   distcds 13217   0gc0g 13400   normcnm 18099
This theorem is referenced by:  nmval2  18114  ngpds2  18127  isngp4  18133  nmge0  18138  nmeq0  18139  nminv  18142  nmmtri  18143  nmrtri  18145
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1533  ax-5 1544  ax-17 1603  ax-9 1635  ax-8 1643  ax-13 1686  ax-14 1688  ax-6 1703  ax-7 1708  ax-11 1715  ax-12 1866  ax-ext 2264  ax-sep 4141  ax-nul 4149  ax-pow 4188  ax-pr 4214  ax-un 4512
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-tru 1310  df-ex 1529  df-nf 1532  df-sb 1630  df-eu 2147  df-mo 2148  df-clab 2270  df-cleq 2276  df-clel 2279  df-nfc 2408  df-ne 2448  df-ral 2548  df-rex 2549  df-rab 2552  df-v 2790  df-sbc 2992  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3456  df-if 3566  df-pw 3627  df-sn 3646  df-pr 3647  df-op 3649  df-uni 3828  df-br 4024  df-opab 4078  df-mpt 4079  df-id 4309  df-xp 4695  df-rel 4696  df-cnv 4697  df-co 4698  df-dm 4699  df-rn 4700  df-res 4701  df-ima 4702  df-iota 5219  df-fun 5257  df-fn 5258  df-f 5259  df-fv 5263  df-ov 5861  df-nm 18105
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