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Theorem op2nd 6302
Description: Extract the second member of an ordered pair. (Contributed by NM, 5-Oct-2004.)
Hypotheses
Ref Expression
op1st.1 𝐴 ∈ V
op1st.2 𝐵 ∈ V
Assertion
Ref Expression
op2nd (2nd ‘⟨𝐴, 𝐵⟩) = 𝐵

Proof of Theorem op2nd
StepHypRef Expression
1 op1st.1 . . . 4 𝐴 ∈ V
2 op1st.2 . . . 4 𝐵 ∈ V
3 opexg 4315 . . . 4 ((𝐴 ∈ V ∧ 𝐵 ∈ V) → ⟨𝐴, 𝐵⟩ ∈ V)
41, 2, 3mp2an 426 . . 3 𝐴, 𝐵⟩ ∈ V
5 2ndvalg 6298 . . 3 (⟨𝐴, 𝐵⟩ ∈ V → (2nd ‘⟨𝐴, 𝐵⟩) = ran {⟨𝐴, 𝐵⟩})
64, 5ax-mp 5 . 2 (2nd ‘⟨𝐴, 𝐵⟩) = ran {⟨𝐴, 𝐵⟩}
71, 2op2nda 5216 . 2 ran {⟨𝐴, 𝐵⟩} = 𝐵
86, 7eqtri 2250 1 (2nd ‘⟨𝐴, 𝐵⟩) = 𝐵
Colors of variables: wff set class
Syntax hints:   = wceq 1395  wcel 2200  Vcvv 2799  {csn 3666  cop 3669   cuni 3888  ran crn 4721  cfv 5321  2nd c2nd 6294
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4202  ax-pow 4259  ax-pr 4294  ax-un 4525
This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2801  df-sbc 3029  df-un 3201  df-in 3203  df-ss 3210  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-br 4084  df-opab 4146  df-mpt 4147  df-id 4385  df-xp 4726  df-rel 4727  df-cnv 4728  df-co 4729  df-dm 4730  df-rn 4731  df-iota 5281  df-fun 5323  df-fv 5329  df-2nd 6296
This theorem is referenced by:  op2ndd  6304  op2ndg  6306  2ndval2  6311  fo2ndresm  6317  eloprabi  6353  fo2ndf  6384  f1o2ndf1  6385  xpmapenlem  7023  genpelvu  7716  nqprl  7754  1pru  7759  addnqprlemru  7761  addnqprlemfl  7762  addnqprlemfu  7763  mulnqprlemru  7777  mulnqprlemfl  7778  mulnqprlemfu  7779  ltnqpr  7796  ltnqpri  7797  ltexprlemelu  7802  recexprlemelu  7826  cauappcvgprlemm  7848  cauappcvgprlemopu  7851  cauappcvgprlemupu  7852  cauappcvgprlemdisj  7854  cauappcvgprlemloc  7855  cauappcvgprlemladdfu  7857  cauappcvgprlemladdru  7859  cauappcvgprlemladdrl  7860  cauappcvgprlem2  7863  caucvgprlemm  7871  caucvgprlemopu  7874  caucvgprlemupu  7875  caucvgprlemdisj  7877  caucvgprlemloc  7878  caucvgprlemladdfu  7880  caucvgprlem2  7883  caucvgprprlemelu  7889  caucvgprprlemmu  7898  caucvgprprlemexbt  7909  caucvgprprlem2  7913  suplocexprlemloc  7924  fsum2dlemstep  11966  fprod2dlemstep  12154  ctiunctlemfo  13031
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