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Mirrors > Home > MPE Home > Th. List > pm5.32da | Structured version Visualization version Unicode version |
Description: Distribution of implication over biconditional (deduction rule). (Contributed by NM, 9-Dec-2006.) |
Ref | Expression |
---|---|
pm5.32da.1 |
Ref | Expression |
---|---|
pm5.32da |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm5.32da.1 | . . 3 | |
2 | 1 | ex 450 | . 2 |
3 | 2 | pm5.32d 671 | 1 |
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