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Mirrors > Home > MPE Home > Th. List > albiim | Structured version Visualization version Unicode version |
Description: Split a biconditional and distribute quantifier. (Contributed by NM, 18-Aug-1993.) |
Ref | Expression |
---|---|
albiim |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfbi2 638 |
. . 3
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2 | 1 | albii 1701 |
. 2
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3 | 19.26 1742 |
. 2
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4 | 2, 3 | bitri 257 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1679 ax-4 1692 |
This theorem depends on definitions: df-bi 190 df-an 377 |
This theorem is referenced by: 2albiim 1763 mo2v 2316 eu1 2349 eqss 3458 ssext 4668 asymref2 5235 pm14.122a 36816 |
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