Description: Substitution of equal classes into an inequality. (Contributed by NM, 4-Jul-2012)
Ref | Expression | ||
---|---|---|---|
Hypotheses | neeqtrd.1 | |
|
neeqtrd.2 | |
||
Assertion | neeqtrd | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | neeqtrd.1 | |
|
2 | neeqtrd.2 | |
|
3 | 2 | neeq2d | |
4 | 1 3 | mpbid | |