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Step * 1 3 of Lemma int_ring_wf

.....wf..... 
1. r : Rng
⊢ Comm(|r|;*) ∈ Type
BY
{ Auto }

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Latex:

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Latex:
.....wf..... 
1.  r  :  Rng
\mvdash{}  Comm(|r|;*)  \mmember{}  Type


By

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Latex:
Auto

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