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Mirrors > Home > MPE Home > Th. List > biimpri | Structured version Visualization version Unicode version |
Description: Infer a converse implication from a logical equivalence. Inference associated with biimpr 210. (Contributed by NM, 29-Dec-1992.) (Proof shortened by Wolf Lammen, 16-Sep-2013.) |
Ref | Expression |
---|---|
biimpri.1 |
Ref | Expression |
---|---|
biimpri |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | biimpri.1 | . . 3 | |
2 | 1 | bicomi 214 | . 2 |
3 | 2 | biimpi 206 | 1 |
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