Description: Consequence of the dual modular pair property. (Contributed by NM, 27-Apr-2006) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | dmdi | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dmdbr | |
|
2 | 1 | biimpd | |
3 | sseq2 | |
|
4 | ineq1 | |
|
5 | 4 | oveq1d | |
6 | ineq1 | |
|
7 | 5 6 | eqeq12d | |
8 | 3 7 | imbi12d | |
9 | 8 | rspcv | |
10 | 2 9 | sylan9 | |
11 | 10 | 3impa | |
12 | 11 | imp32 | |