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Mirrors > Home > MPE Home > Th. List > renegcld | Structured version Visualization version Unicode version |
Description: Closure law for negative of reals. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
renegcld.1 |
Ref | Expression |
---|---|
renegcld |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | renegcld.1 | . 2 | |
2 | renegcl 10344 | . 2 | |
3 | 1, 2 | syl 17 | 1 |
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