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Mirrors > Home > MPE Home > Th. List > syl5eqss | Structured version Visualization version Unicode version |
Description: A chained subclass and equality deduction. (Contributed by NM, 25-Apr-2004.) |
Ref | Expression |
---|---|
syl5eqss.1 |
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syl5eqss.2 |
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Ref | Expression |
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syl5eqss |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syl5eqss.2 |
. 2
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2 | syl5eqss.1 |
. . 3
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3 | 2 | sseq1i 3455 |
. 2
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4 | 1, 3 | sylibr 216 |
1
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