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| Mirrors > Home > ILE Home > Th. List > mp1i | Unicode version | ||
| Description: Drop and replace an antecedent. (Contributed by Stefan O'Rear, 29-Jan-2015.) |
| Ref | Expression |
|---|---|
| mp1i.a |
|
| mp1i.b |
|
| Ref | Expression |
|---|---|
| mp1i |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mp1i.a |
. . 3
| |
| 2 | mp1i.b |
. . 3
| |
| 3 | 1, 2 | ax-mp 5 |
. 2
|
| 4 | 3 | a1i 9 |
1
|
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