Description: Bunjakovaskij-Cauchy-Schwarz inequality. Remark 3.4 of Beran p. 98. (Contributed by NM, 16-Feb-2006) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | bcs | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvoveq1 | |
|
2 | fveq2 | |
|
3 | 2 | oveq1d | |
4 | 1 3 | breq12d | |
5 | oveq2 | |
|
6 | 5 | fveq2d | |
7 | fveq2 | |
|
8 | 7 | oveq2d | |
9 | 6 8 | breq12d | |
10 | ifhvhv0 | |
|
11 | ifhvhv0 | |
|
12 | 10 11 | bcsiHIL | |
13 | 4 9 12 | dedth2h | |