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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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