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Mirrors > Home > MPE Home > Th. List > 3bitrd | Structured version Visualization version Unicode version |
Description: Deduction from transitivity of biconditional. (Contributed by NM, 13-Aug-1999.) |
Ref | Expression |
---|---|
3bitrd.1 | |
3bitrd.2 | |
3bitrd.3 |
Ref | Expression |
---|---|
3bitrd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3bitrd.1 | . . 3 | |
2 | 3bitrd.2 | . . 3 | |
3 | 1, 2 | bitrd 268 | . 2 |
4 | 3bitrd.3 | . 2 | |
5 | 3, 4 | bitrd 268 | 1 |
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