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Theorem raleqbidv 2661
Description: Equality deduction for restricted universal quantifier. (Contributed by NM, 6-Nov-2007.)
Hypotheses
Ref Expression
raleqbidv.1 (𝜑𝐴 = 𝐵)
raleqbidv.2 (𝜑 → (𝜓𝜒))
Assertion
Ref Expression
raleqbidv (𝜑 → (∀𝑥𝐴 𝜓 ↔ ∀𝑥𝐵 𝜒))
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝜑,𝑥
Allowed substitution hints:   𝜓(𝑥)   𝜒(𝑥)

Proof of Theorem raleqbidv
StepHypRef Expression
1 raleqbidv.1 . . 3 (𝜑𝐴 = 𝐵)
21raleqdv 2655 . 2 (𝜑 → (∀𝑥𝐴 𝜓 ↔ ∀𝑥𝐵 𝜓))
3 raleqbidv.2 . . 3 (𝜑 → (𝜓𝜒))
43ralbidv 2454 . 2 (𝜑 → (∀𝑥𝐵 𝜓 ↔ ∀𝑥𝐵 𝜒))
52, 4bitrd 187 1 (𝜑 → (∀𝑥𝐴 𝜓 ↔ ∀𝑥𝐵 𝜒))
Colors of variables: wff set class
Syntax hints:  wi 4  wb 104   = wceq 1332  wral 2432
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-io 699  ax-5 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1481  ax-10 1482  ax-11 1483  ax-i12 1484  ax-bndl 1486  ax-4 1487  ax-17 1503  ax-i9 1507  ax-ial 1511  ax-i5r 1512  ax-ext 2136
This theorem depends on definitions:  df-bi 116  df-tru 1335  df-nf 1438  df-sb 1740  df-cleq 2147  df-clel 2150  df-nfc 2285  df-ral 2437
This theorem is referenced by:  ofrfval  6030  fmpox  6138  tfrlemi1  6269  supeq123d  6923  cvg1nlemcau  10861  cvg1nlemres  10862  cau3lem  10991  fsum2dlemstep  11308  fisumcom2  11312  fprod2dlemstep  11496  fprodcom2fi  11500  istopg  12336  restbasg  12507  cnfval  12533  cnpfval  12534  txbas  12597  limccl  12967  sscoll2  13501
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