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| Mirrors > Home > ILE Home > Th. List > mpan2 | Unicode version | ||
| Description: An inference based on modus ponens. (Contributed by NM, 16-Sep-1993.) (Proof shortened by Wolf Lammen, 19-Nov-2012.) | 
| Ref | Expression | 
|---|---|
| mpan2.1 | 
 | 
| mpan2.2 | 
 | 
| Ref | Expression | 
|---|---|
| mpan2 | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | mpan2.1 | 
. . 3
 | |
| 2 | 1 | a1i 9 | 
. 2
 | 
| 3 | mpan2.2 | 
. 2
 | |
| 4 | 2, 3 | mpdan 421 | 
1
 | 
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