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Step * 2 1 of Lemma rec-value-ext


1. x : atomic-values() ⋃ (rec-value() × rec-value()) ⋃ (rec-value() + rec-value())@i
⊢ x ∈ co-value()
BY
{ (InstLemma `co-value-ext` []
   THEN SubsumeC  ⌜atomic-values() ⋃ (co-value() × co-value()) ⋃ (co-value() + co-value())⌝⋅
   THEN Auto) }

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Latex:

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Latex:

1.  x  :  atomic-values()  \mcup{}  (rec-value()  \mtimes{}  rec-value())  \mcup{}  (rec-value()  +  rec-value())@i
\mvdash{}  x  \mmember{}  co-value()


By

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Latex:
(InstLemma  `co-value-ext`  []
  THEN  SubsumeC    \mkleeneopen{}atomic-values()  \mcup{}  (co-value()  \mtimes{}  co-value())  \mcup{}  (co-value()  +  co-value())\mkleeneclose{}\mcdot{}
  THEN  Auto)

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