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Step * 1 1 of Lemma crng_properties


1. r : Rng
2. [%1] : Comm(|r|;*)
⊢ Comm(|r|;*)
BY
{ UnhideSqStableHyp 2 THEN Auto }

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Latex:

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Latex:

1.  r  :  Rng
2.  [\%1]  :  Comm(|r|;*)
\mvdash{}  Comm(|r|;*)


By

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Latex:
UnhideSqStableHyp  2  THEN  Auto

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