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Theorem hbeu1 1907
Description: Bound-variable hypothesis builder for uniqueness. (Contributed by NM, 9-Jul-1994.)
Assertion
Ref Expression
hbeu1

Proof of Theorem hbeu1
Dummy variable is distinct from all other variables.
StepHypRef Expression
1 df-eu 1900 . 2
2 hba1 1430 . . 3
32hbex 1524 . 2
41, 3hbxfrbi 1358 1
Colors of variables: wff set class
Syntax hints:   wi 4   wb 98  wal 1240  wex 1378  weu 1897
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-5 1333  ax-7 1334  ax-gen 1335  ax-ie1 1379  ax-ie2 1380  ax-4 1397  ax-ial 1424
This theorem depends on definitions:  df-bi 110  df-eu 1900
This theorem is referenced by:  hbmo1  1935  eupicka  1977  exists2  1994
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