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Theorem an6 1215
Description: Rearrangement of 6 conjuncts. (Contributed by NM, 13-Mar-1995.)
Assertion
Ref Expression
an6

Proof of Theorem an6
StepHypRef Expression
1 df-3an 886 . . . 4
2 df-3an 886 . . . 4
31, 2anbi12i 433 . . 3
4 an4 520 . . 3
5 an4 520 . . . 4
65anbi1i 431 . . 3
73, 4, 63bitri 195 . 2
8 df-3an 886 . 2
97, 8bitr4i 176 1
Colors of variables: wff set class
Syntax hints:   wa 97   wb 98   w3a 884
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101
This theorem depends on definitions:  df-bi 110  df-3an 886
This theorem is referenced by:  3an6  1216  elfzuzb  8654
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