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Step * 1 2 of Lemma one_ideal_wf

.....set predicate..... 
1. r : CRng
⊢ λu.True Ideal of r
BY
{ ((Unfold `ideal_p` 0 THEN Reduce 0) THEN Auto) }

1
1. r : CRng
⊢ λu.True SubGrp of r↓+gp

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Latex:

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Latex:
.....set  predicate..... 
1.  r  :  CRng
\mvdash{}  \mlambda{}u.True  Ideal  of  r


By

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Latex:
((Unfold  `ideal\_p`  0  THEN  Reduce  0)  THEN  Auto)

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