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Step * 1 of Lemma cdrng_properties


1. r : CDRng
⊢ IsEqFun(|r|;=b)
BY
{ BasicAbSetHD 1 }

1
1. r : CRng
2. [%1] : IsEqFun(|r|;=b)
⊢ IsEqFun(|r|;=b)

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Latex:

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Latex:

1.  r  :  CDRng
\mvdash{}  IsEqFun(|r|;=\msubb{})


By

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Latex:
BasicAbSetHD  1

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