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Mirrors > Home > MPE Home > Th. List > biimpar | Unicode version |
Description: Inference from a logical equivalence. (Contributed by NM, 3-May-1994.) |
Ref | Expression |
---|---|
biimpa.1 |
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Ref | Expression |
---|---|
biimpar |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | biimpa.1 |
. . 3
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2 | 1 | biimprd 215 |
. 2
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3 | 2 | imp 419 |
1
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