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Mirrors > Home > MPE Home > Th. List > df-r | Structured version Visualization version Unicode version |
Description: Define the set of real numbers. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.) |
Ref | Expression |
---|---|
df-r |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cr 9935 | . 2 | |
2 | cnr 9687 | . . 3 | |
3 | c0r 9688 | . . . 4 | |
4 | 3 | csn 4177 | . . 3 |
5 | 2, 4 | cxp 5112 | . 2 |
6 | 1, 5 | wceq 1483 | 1 |
Colors of variables: wff setvar class |
This definition is referenced by: opelreal 9951 elreal 9952 elreal2 9953 axresscn 9969 ax1rid 9982 avril1 27319 |
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