Description: The Euler-Mascheroni constant is a real number. (Contributed by Mario Carneiro, 11-Jul-2014)
Ref | Expression | ||
---|---|---|---|
Assertion | emre | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re | |
|
2 | 2rp | |
|
3 | relogcl | |
|
4 | 2 3 | ax-mp | |
5 | 1 4 | resubcli | |
6 | iccssre | |
|
7 | 5 1 6 | mp2an | |
8 | emcl | |
|
9 | 7 8 | sselii | |