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| Mirrors > Home > ILE Home > Th. List > mpbid | Unicode version | ||
| Description: A deduction from a biconditional, related to modus ponens. (Contributed by NM, 5-Aug-1993.) |
| Ref | Expression |
|---|---|
| mpbid.min |
|
| mpbid.maj |
|
| Ref | Expression |
|---|---|
| mpbid |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpbid.min |
. 2
| |
| 2 | mpbid.maj |
. . 3
| |
| 3 | 2 | biimpd 144 |
. 2
|
| 4 | 1, 3 | mpd 13 |
1
|
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