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| Mirrors > Home > MPE Home > Th. List > biimpd | Structured version Visualization version Unicode version | ||
| Description: Deduce an implication from a logical equivalence. Deduction associated with biimp 205 and biimpi 206. (Contributed by NM, 11-Jan-1993.) |
| Ref | Expression |
|---|---|
| biimpd.1 |
|
| Ref | Expression |
|---|---|
| biimpd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biimpd.1 |
. 2
| |
| 2 | biimp 205 |
. 2
| |
| 3 | 1, 2 | syl 17 |
1
|
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