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Theorem iftruei 4491
Description: Inference associated with iftrue 4490. (Contributed by BJ, 7-Oct-2018.)
Hypothesis
Ref Expression
iftruei.1 𝜑
Assertion
Ref Expression
iftruei if(𝜑, 𝐴, 𝐵) = 𝐴

Proof of Theorem iftruei
StepHypRef Expression
1 iftruei.1 . 2 𝜑
2 iftrue 4490 . 2 (𝜑 → if(𝜑, 𝐴, 𝐵) = 𝐴)
31, 2ax-mp 5 1 if(𝜑, 𝐴, 𝐵) = 𝐴
Colors of variables: wff setvar class
Syntax hints:   = wceq 1541  ifcif 4484
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-ext 2707
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 846  df-ex 1782  df-sb 2068  df-clab 2714  df-cleq 2728  df-clel 2814  df-if 4485
This theorem is referenced by:  oe0m  8460  ttrcltr  9648  ttukeylem4  10444  xnegpnf  13120  xnegmnf  13121  xaddpnf1  13137  xaddpnf2  13138  xaddmnf1  13139  xaddmnf2  13140  pnfaddmnf  13141  mnfaddpnf  13142  xmul01  13178  exp0  13963  swrd00  14524  sgn0  14966  lcm0val  16462  prmo2  16904  prmo3  16905  prmo5  16993  mulg0  18870  zzngim  20944  obsipid  21113  mvrid  21376  mamulid  21774  mamurid  21775  mat1dimid  21807  scmatf1  21864  mdetdiagid  21933  chpdmatlem3  22173  chpidmat  22180  fclscmpi  23364  ioorinv  24924  ig1pval2  25522  dgrcolem2  25619  plydivlem4  25640  vieta1lem2  25655  0cxp  26005  cxpexp  26007  lgs0  26642  lgs2  26646  2lgs2  26737  left1s  27208  axlowdim  27796  1loopgrvd2  28337  eupth2  29069  ex-prmo  29289  madjusmdetlem1  32277  signsw0glem  33034  breprexp  33115  ex-sategoelel  33884  rdgprc0  34238  bj-pr11val  35443  bj-pr22val  35457  mapdhval0  40155  hdmap1val0  40229  refsum2cnlem1  43184  liminf10ex  43947  cncfiooicclem1  44066  fouriersw  44404  hspmbllem1  44799  blen0  46590  0dig1  46627
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