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

Theorem nprrel 4649
Description: No proper class is related to anything via any relation. (Contributed by Roy F. Longton, 30-Jul-2005.)
Hypotheses
Ref Expression
nprrel.1  |-  Rel  R
nprrel.2  |-  -.  A  e.  _V
Assertion
Ref Expression
nprrel  |-  -.  A R B

Proof of Theorem nprrel
StepHypRef Expression
1 nprrel.2 . 2  |-  -.  A  e.  _V
2 nprrel.1 . . 3  |-  Rel  R
32brrelex1i 4647 . 2  |-  ( A R B  ->  A  e.  _V )
41, 3mto 652 1  |-  -.  A R B
Colors of variables: wff set class
Syntax hints:   -. wn 3    e. wcel 2136   _Vcvv 2726   class class class wbr 3982   Rel wrel 4609
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-in1 604  ax-in2 605  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-14 2139  ax-ext 2147  ax-sep 4100  ax-pow 4153  ax-pr 4187
This theorem depends on definitions:  df-bi 116  df-3an 970  df-tru 1346  df-nf 1449  df-sb 1751  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-ral 2449  df-rex 2450  df-v 2728  df-un 3120  df-in 3122  df-ss 3129  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-br 3983  df-opab 4044  df-xp 4610  df-rel 4611
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator