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| Mirrors > Home > MPE Home > Th. List > jaodan | Structured version Visualization version Unicode version | ||
| Description: Deduction disjoining the antecedents of two implications. (Contributed by NM, 14-Oct-2005.) |
| Ref | Expression |
|---|---|
| jaodan.1 |
|
| jaodan.2 |
|
| Ref | Expression |
|---|---|
| jaodan |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | jaodan.1 |
. . . 4
| |
| 2 | 1 | ex 450 |
. . 3
|
| 3 | jaodan.2 |
. . . 4
| |
| 4 | 3 | ex 450 |
. . 3
|
| 5 | 2, 4 | jaod 395 |
. 2
|
| 6 | 5 | imp 445 |
1
|
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