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Mirrors > Home > ILE Home > Th. List > bitrd | Unicode version |
Description: Deduction form of bitri 183. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Wolf Lammen, 14-Apr-2013.) |
Ref | Expression |
---|---|
bitrd.1 | |
bitrd.2 |
Ref | Expression |
---|---|
bitrd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bitrd.1 | . . . 4 | |
2 | 1 | pm5.74i 179 | . . 3 |
3 | bitrd.2 | . . . 4 | |
4 | 3 | pm5.74i 179 | . . 3 |
5 | 2, 4 | bitri 183 | . 2 |
6 | 5 | pm5.74ri 180 | 1 |
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