Metamath Proof Explorer
Description: Substitution of equal classes into an inequality. (Contributed by NM, 4-Jul-2012)
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Ref |
Expression |
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Hypotheses |
eqnetrrd.1 |
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eqnetrrd.2 |
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Assertion |
eqnetrrd |
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Proof
Step |
Hyp |
Ref |
Expression |
1 |
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eqnetrrd.1 |
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2 |
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eqnetrrd.2 |
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3 |
1
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eqcomd |
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4 |
3 2
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eqnetrd |
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