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 |
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int-eqineqd.1 |
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2 |
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int-eqineqd.2 |
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3 |
2
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eqcomd |
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4 |
1 3
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eqled |
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