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Mirrors > Home > ILE Home > Th. List > 0re | Unicode version |
Description: is a real number. (Contributed by Eric Schmidt, 21-May-2007.) (Revised by Scott Fenton, 3-Jan-2013.) |
Ref | Expression |
---|---|
0re |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re 7898 | . 2 | |
2 | ax-rnegex 7862 | . 2 | |
3 | readdcl 7879 | . . . . 5 | |
4 | 1, 3 | mpan 421 | . . . 4 |
5 | eleq1 2229 | . . . 4 | |
6 | 4, 5 | syl5ibcom 154 | . . 3 |
7 | 6 | rexlimiv 2577 | . 2 |
8 | 1, 2, 7 | mp2b 8 | 1 |
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