Intuitionistic Logic Explorer < Previous   Next > Nearby theorems Mirrors  >  Home  >  ILE Home  >  Th. List  >  iuneq2dv Unicode version

Theorem iuneq2dv 3843
 Description: Equality deduction for indexed union. (Contributed by NM, 3-Aug-2004.)
Hypothesis
Ref Expression
iuneq2dv.1
Assertion
Ref Expression
iuneq2dv
Distinct variable group:   ,
Allowed substitution hints:   ()   ()   ()

Proof of Theorem iuneq2dv
StepHypRef Expression
1 iuneq2dv.1 . . 3
21ralrimiva 2509 . 2
3 iuneq2 3838 . 2
42, 3syl 14 1
 Colors of variables: wff set class Syntax hints:   wi 4   wa 103   wceq 1332   wcel 1481  wral 2417  ciun 3822 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 1483  ax-10 1484  ax-11 1485  ax-i12 1486  ax-bndl 1487  ax-4 1488  ax-17 1507  ax-i9 1511  ax-ial 1515  ax-i5r 1516  ax-ext 2122 This theorem depends on definitions:  df-bi 116  df-tru 1335  df-nf 1438  df-sb 1737  df-clab 2127  df-cleq 2133  df-clel 2136  df-nfc 2271  df-ral 2422  df-rex 2423  df-v 2692  df-in 3083  df-ss 3090  df-iun 3824 This theorem is referenced by:  iuneq12d  3846  iuneq2d  3847  oav2  6370  omv2  6372  ennnfonelemrn  12002  tgidm  12316
 Copyright terms: Public domain W3C validator