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Mirrors > Home > MPE Home > Th. List > 0xr | Structured version Visualization version Unicode version |
Description: Zero is an extended real. (Contributed by Mario Carneiro, 15-Jun-2014.) |
Ref | Expression |
---|---|
0xr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ressxr 9689 |
. 2
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2 | 0re 9648 |
. 2
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3 | 1, 2 | sselii 3431 |
1
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