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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 |
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jaodan.2 |
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Ref | Expression |
---|---|
jaodan |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | jaodan.1 |
. . . 4
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2 | 1 | ex 436 |
. . 3
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3 | jaodan.2 |
. . . 4
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4 | 3 | ex 436 |
. . 3
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5 | 2, 4 | jaod 382 |
. 2
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6 | 5 | imp 431 |
1
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