ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  ssel2 GIF version

Theorem ssel2 3222
Description: Membership relationships follow from a subclass relationship. (Contributed by NM, 7-Jun-2004.)
Assertion
Ref Expression
ssel2 ((𝐴𝐵𝐶𝐴) → 𝐶𝐵)

Proof of Theorem ssel2
StepHypRef Expression
1 ssel 3221 . 2 (𝐴𝐵 → (𝐶𝐴𝐶𝐵))
21imp 124 1 ((𝐴𝐵𝐶𝐴) → 𝐶𝐵)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  wcel 2202  wss 3200
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-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-11 1554  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-nf 1509  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-in 3206  df-ss 3213
This theorem is referenced by:  elnn  4704  funimass4  5696  fvelimab  5702  ssimaex  5707  funconstss  5765  rexima  5895  ralima  5896  1st2nd  6344  f1o2ndf1  6393  tfri1dALT  6517  eldju1st  7270  axsuploc  8252  lbinf  9128  dfinfre  9136  lbzbi  9850  elfzom1elp1fzo  10448  ssfzo12  10470  seq3split  10751  seqsplitg  10752  shftlem  11381  uzwodc  12613  subgintm  13790  subrngintm  14232  subrgintm  14263  tgcl  14794  neipsm  14884  txbasval  14997  elmopn2  15179  metrest  15236  cncfmet  15322  negcncf  15335  ply1term  15473  plyconst  15475  reeff1olem  15501  usgruspgrben  16043
  Copyright terms: Public domain W3C validator