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| Mirrors > Home > MPE Home > Th. List > mpbir2and | Structured version Visualization version Unicode version | ||
| Description: Detach a conjunction of truths in a biconditional. (Contributed by NM, 6-Nov-2011.) (Proof shortened by Wolf Lammen, 24-Nov-2012.) |
| Ref | Expression |
|---|---|
| mpbir2and.1 |
|
| mpbir2and.2 |
|
| mpbir2and.3 |
|
| Ref | Expression |
|---|---|
| mpbir2and |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpbir2and.1 |
. . 3
| |
| 2 | mpbir2and.2 |
. . 3
| |
| 3 | 1, 2 | jca 554 |
. 2
|
| 4 | mpbir2and.3 |
. 2
| |
| 5 | 3, 4 | mpbird 247 |
1
|
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