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Mirrors > Home > ILE Home > Th. List > 3bitr2ri | Unicode version |
Description: A chained inference from transitive law for logical equivalence. (Contributed by NM, 4-Aug-2006.) |
Ref | Expression |
---|---|
3bitr2i.1 |
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3bitr2i.2 |
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3bitr2i.3 |
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Ref | Expression |
---|---|
3bitr2ri |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3bitr2i.1 |
. . 3
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2 | 3bitr2i.2 |
. . 3
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3 | 1, 2 | bitr4i 187 |
. 2
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4 | 3bitr2i.3 |
. 2
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5 | 3, 4 | bitr2i 185 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
This theorem depends on definitions: df-bi 117 |
This theorem is referenced by: sbnf2 1981 ssrab 3233 rabn0m 3450 unidif0 4166 relop 4776 dmopab3 4839 restidsing 4962 issref 5010 fununi 5283 cnvoprab 6232 ssfirab 6930 |
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