NFE Home New Foundations Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  hbs1 Unicode version

Theorem hbs1 2105
Description: is not free in when and are distinct. (Contributed by NM, 5-Aug-1993.)
Assertion
Ref Expression
hbs1
Distinct variable group:   ,
Allowed substitution hints:   (,)

Proof of Theorem hbs1
StepHypRef Expression
1 ax16 2045 . 2
2 hbsb2 2057 . 2
31, 2pm2.61i 156 1
Colors of variables: wff setvar class
Syntax hints:   wi 4  wal 1540  wsb 1648
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925
This theorem depends on definitions:  df-bi 177  df-an 360  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649
This theorem is referenced by:  nfs1v  2106  hbab1  2342
  Copyright terms: Public domain W3C validator