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| Mirrors > Home > MPE Home > Th. List > elrege0 | Structured version Visualization version Unicode version | ||
| Description: The predicate "is a nonnegative real". (Contributed by Jeff Madsen, 2-Sep-2009.) (Proof shortened by Mario Carneiro, 18-Jun-2014.) |
| Ref | Expression |
|---|---|
| elrege0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re 10040 |
. 2
| |
| 2 | elicopnf 12269 |
. 2
| |
| 3 | 1, 2 | ax-mp 5 |
1
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