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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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