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Step * 1 1 1 of Lemma no-uniform-xmiddle

.....assertion..... 
1. x : ∀[P:ℙ]. (P ∨ (¬P))@i'
⊢ ¬↑isl(x)
BY
{ (GenConclAtAddrType ⌜False ∨ (¬False)⌝ [1;1;1]⋅ THEN Try ((D -2 THEN Reduce 0 THEN Auto)) THEN Auto) }

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Latex:

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Latex:
.....assertion..... 
1.  x  :  \mforall{}[P:\mBbbP{}].  (P  \mvee{}  (\mneg{}P))@i'
\mvdash{}  \mneg{}\muparrow{}isl(x)


By

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Latex:
(GenConclAtAddrType  \mkleeneopen{}False  \mvee{}  (\mneg{}False)\mkleeneclose{}  [1;1;1]\mcdot{}  THEN  Try  ((D  -2  THEN  Reduce  0  THEN  Auto))  THEN  Auto)

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