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Step * of Lemma test1

∀p:ℕ × ℕ. ∀bs:ℕ List.  (let x,y = p in x + y ∈ ℤ)
BY
{ ((UnivCD⋅ THENM UseSimpleTypeInf) THEN Auto THEN SubtypeReasoning THEN Auto) }

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Latex:

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Latex:
\mforall{}p:\mBbbN{}  \mtimes{}  \mBbbN{}.  \mforall{}bs:\mBbbN{}  List.    (let  x,y  =  p  in  x  +  y  \mmember{}  \mBbbZ{})


By

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Latex:
((UnivCD\mcdot{}  THENM  UseSimpleTypeInf)  THEN  Auto  THEN  SubtypeReasoning  THEN  Auto)

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