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| Mirrors > Home > MPE Home > Th. List > rpcnne0d | Structured version Visualization version Unicode version | ||
| Description: A positive real is a nonzero complex number. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| rpred.1 |
|
| Ref | Expression |
|---|---|
| rpcnne0d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpred.1 |
. . 3
| |
| 2 | 1 | rpcnd 11874 |
. 2
|
| 3 | 1 | rpne0d 11877 |
. 2
|
| 4 | 2, 3 | jca 554 |
1
|
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