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Step * of Lemma decidable__cand

∀[P:ℙ]. ∀[Q:⋂x:P. ℙ].  (Dec(P) ⇒ (P ⇒ Dec(Q)) ⇒ Dec(P c∧ Q))
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Latex:

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Latex:
\mforall{}[P:\mBbbP{}].  \mforall{}[Q:\mcap{}x:P.  \mBbbP{}].    (Dec(P)  {}\mRightarrow{}  (P  {}\mRightarrow{}  Dec(Q))  {}\mRightarrow{}  Dec(P  c\mwedge{}  Q))


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Latex:
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