Description: EquivalenceImpliesDoubleInequality generator rule. (Contributed by Stanislas Polu, 7-Apr-2020)
Ref | Expression | ||
---|---|---|---|
Hypotheses | int-eqineqd.1 | |
|
int-eqineqd.2 | |
||
Assertion | int-eqineqd | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | int-eqineqd.1 | |
|
2 | int-eqineqd.2 | |
|
3 | 2 | eqcomd | |
4 | 1 3 | eqled | |