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Mirrors > Home > ILE Home > Th. List > biimpd | Unicode version |
Description: Deduce an implication from a logical equivalence. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
biimpd.1 |
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Ref | Expression |
---|---|
biimpd |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | biimpd.1 |
. 2
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2 | biimp 118 |
. 2
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3 | 1, 2 | syl 14 |
1
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