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