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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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