Description: Define an embedding from the extended real number into a complete lattice. (Contributed by Thierry Arnoux, 19-Feb-2018)
Ref | Expression | ||
---|---|---|---|
Assertion | df-xrh | |
Step | Hyp | Ref | Expression |
---|---|---|---|
0 | cxrh | |
|
1 | vr | |
|
2 | cvv | |
|
3 | vx | |
|
4 | cxr | |
|
5 | 3 | cv | |
6 | cr | |
|
7 | 5 6 | wcel | |
8 | crrh | |
|
9 | 1 | cv | |
10 | 9 8 | cfv | |
11 | 5 10 | cfv | |
12 | cpnf | |
|
13 | 5 12 | wceq | |
14 | club | |
|
15 | 9 14 | cfv | |
16 | 10 6 | cima | |
17 | 16 15 | cfv | |
18 | cglb | |
|
19 | 9 18 | cfv | |
20 | 16 19 | cfv | |
21 | 13 17 20 | cif | |
22 | 7 11 21 | cif | |
23 | 3 4 22 | cmpt | |
24 | 1 2 23 | cmpt | |
25 | 0 24 | wceq | |