Description: Lemma 1 for itscnhlinecirc02p . (Contributed by AV, 6-Mar-2023)
Ref | Expression | ||
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Hypotheses | 2itscp.a | |
|
2itscp.b | |
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2itscp.x | |
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2itscp.y | |
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2itscp.d | |
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2itscp.e | |
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2itscp.c | |
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2itscp.r | |
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2itscp.l | |
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itscnhlinecirc02plem1.n | |
||
Assertion | itscnhlinecirc02plem1 | |