Description: Ordering relation for operators. Definition of operator ordering in Young p. 141. (Contributed by NM, 23-Jul-2006) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | leop2 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leop | |
|
2 | hmopf | |
|
3 | hmopf | |
|
4 | 2 3 | anim12i | |
5 | hodval | |
|
6 | 5 | 3com12 | |
7 | 6 | 3expa | |
8 | 7 | oveq1d | |
9 | ffvelrn | |
|
10 | 9 | adantll | |
11 | ffvelrn | |
|
12 | 11 | adantlr | |
13 | simpr | |
|
14 | his2sub | |
|
15 | 10 12 13 14 | syl3anc | |
16 | 8 15 | eqtrd | |
17 | 4 16 | sylan | |
18 | 17 | breq2d | |
19 | hmopre | |
|
20 | 19 | adantll | |
21 | hmopre | |
|
22 | 21 | adantlr | |
23 | 20 22 | subge0d | |
24 | 18 23 | bitrd | |
25 | 24 | ralbidva | |
26 | 1 25 | bitrd | |