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Related theorems Unicode version |
| Description: A deduction from a biconditional, related to modus ponens. |
| Ref | Expression |
|---|---|
| mpbird.min |
|
| mpbird.maj |
|
| Ref | Expression |
|---|---|
| mpbird |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpbird.min |
. 2
| |
| 2 | mpbird.maj |
. . 3
| |
| 3 | 2 | biimprd 154 |
. 2
|
| 4 | 1, 3 | mpd 26 |
1
|