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Mirrors > Home > MPE Home > Th. List > 3bitr2d | Structured version Visualization version Unicode version |
Description: Deduction from transitivity of biconditional. (Contributed by NM, 4-Aug-2006.) |
Ref | Expression |
---|---|
3bitr2d.1 | |
3bitr2d.2 | |
3bitr2d.3 |
Ref | Expression |
---|---|
3bitr2d |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3bitr2d.1 | . . 3 | |
2 | 3bitr2d.2 | . . 3 | |
3 | 1, 2 | bitr4d 271 | . 2 |
4 | 3bitr2d.3 | . 2 | |
5 | 3, 4 | bitrd 268 | 1 |
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