Metamath Proof Explorer
Description: Equality theorem for quotient set, deduction form. (Contributed by Steven Nguyen, 30-Apr-2023)
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Ref |
Expression |
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Hypotheses |
qseq12d.1 |
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qseq12d.2 |
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Assertion |
qseq12d |
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Proof
Step |
Hyp |
Ref |
Expression |
1 |
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qseq12d.1 |
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2 |
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qseq12d.2 |
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3 |
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qseq12 |
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4 |
1 2 3
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syl2anc |
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