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Mirrors > Home > MPE Home > Th. List > mpbir2an | Structured version Visualization version Unicode version |
Description: Detach a conjunction of truths in a biconditional. (Contributed by NM, 10-May-2005.) |
Ref | Expression |
---|---|
mpbir2an.1 | |
mpbir2an.2 | |
mpbiran2an.1 |
Ref | Expression |
---|---|
mpbir2an |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mpbir2an.2 | . 2 | |
2 | mpbir2an.1 | . . 3 | |
3 | mpbiran2an.1 | . . 3 | |
4 | 2, 3 | mpbiran 953 | . 2 |
5 | 1, 4 | mpbir 221 | 1 |
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