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Mirrors > Home > ILE Home > Th. List > mpbird | Unicode version |
Description: A deduction from a biconditional, related to modus ponens. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
mpbird.min | |
mpbird.maj |
Ref | Expression |
---|---|
mpbird |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mpbird.min | . 2 | |
2 | mpbird.maj | . . 3 | |
3 | 2 | biimprd 157 | . 2 |
4 | 1, 3 | mpd 13 | 1 |
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