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Step * 3 of Lemma cdrng_is_abdgrp

.....wf..... 
1. r : CRng
2. IsEqFun(|r|;=b)
3. g : AbGrp
⊢ IsEqFun(|g|;=b) ∈ Type
BY
{ Auto }

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Latex:

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Latex:
.....wf..... 
1.  r  :  CRng
2.  IsEqFun(|r|;=\msubb{})
3.  g  :  AbGrp
\mvdash{}  IsEqFun(|g|;=\msubb{})  \mmember{}  Type


By

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Latex:
Auto

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