Description: Hilbert lattice join is the least upper bound of two elements. (Contributed by NM, 11-Jun-2004) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | ch0le.1 | |
|
chjcl.2 | |
||
chlub.1 | |
||
Assertion | chlubi | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ch0le.1 | |
|
2 | chjcl.2 | |
|
3 | chlub.1 | |
|
4 | 1 | chshii | |
5 | 2 | chshii | |
6 | 4 5 3 | shlubi | |