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Step * 1 1 of Lemma zero_ideal_wf


1. r : CRng
⊢ λu.(u = 0 ∈ |r|) ∈ |r| ⟶ ℙ
BY
{ Auto }

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Latex:

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Latex:

1.  r  :  CRng
\mvdash{}  \mlambda{}u.(u  =  0)  \mmember{}  |r|  {}\mrightarrow{}  \mBbbP{}


By

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Latex:
Auto

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