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Step * of Lemma cdrng_subtype_drng

CDRng ⊆r DRng
BY
{ (D 0 THEN Auto) }

1
.....subterm..... T:t
1:n
1. x : CDRng@i'
⊢ x ∈ DRng

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Latex:

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Latex:
CDRng  \msubseteq{}r  DRng


By

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Latex:
(D  0  THEN  Auto)

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