ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  vtoclg GIF version

Theorem vtoclg 2864
Description: Implicit substitution of a class expression for a setvar variable. (Contributed by NM, 17-Apr-1995.)
Hypotheses
Ref Expression
vtoclg.1 (𝑥 = 𝐴 → (𝜑𝜓))
vtoclg.2 𝜑
Assertion
Ref Expression
vtoclg (𝐴𝑉𝜓)
Distinct variable groups:   𝑥,𝐴   𝜓,𝑥
Allowed substitution hints:   𝜑(𝑥)   𝑉(𝑥)

Proof of Theorem vtoclg
StepHypRef Expression
1 nfcv 2374 . 2 𝑥𝐴
2 nfv 1576 . 2 𝑥𝜓
3 vtoclg.1 . 2 (𝑥 = 𝐴 → (𝜑𝜓))
4 vtoclg.2 . 2 𝜑
51, 2, 3, 4vtoclgf 2862 1 (𝐴𝑉𝜓)
Colors of variables: wff set class
Syntax hints:  wi 4  wb 105   = wceq 1397  wcel 2202
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-ext 2213
This theorem depends on definitions:  df-bi 117  df-tru 1400  df-nf 1509  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-v 2804
This theorem is referenced by:  vtoclbg  2865  ceqex  2933  mo2icl  2985  nelrdva  3013  sbctt  3098  sbcnestgf  3179  csbing  3414  ifmdc  3648  prnzg  3797  sneqrg  3845  unisng  3910  csbopabg  4167  trss  4196  inex1g  4225  ssexg  4228  pwexg  4270  prexg  4301  opth  4329  ordelord  4478  uniexg  4536  vtoclr  4774  resieq  5023  csbima12g  5097  dmsnsnsng  5214  iotaexab  5305  iota5  5308  csbiotag  5319  funmo  5341  fconstg  5533  funfveu  5652  funbrfv  5682  fnbrfvb  5684  fvelimab  5702  ssimaexg  5708  fvelrn  5778  isoselem  5961  csbriotag  5985  csbov123g  6057  ovg  6161  tfrexlem  6500  rdg0g  6554  ensn1g  6971  fundmeng  6982  xpdom2g  7016  phplem3g  7042  prcdnql  7704  prcunqu  7705  prdisj  7712  shftvalg  11401  shftval4g  11402  climshft  11869  telfsumo  12032  fsumparts  12036  lcmgcdlem  12654  fiinopn  14734  bdzfauscl  16511  bdinex1g  16522  bdssexg  16525  bj-prexg  16532  bj-uniexg  16539
  Copyright terms: Public domain W3C validator