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Step * of Lemma dM-to-FL-neg2

∀[I:fset(ℕ)]
  ∀x:Point(free-DeMorgan-lattice(names(I);NamesDeq)). (dM-to-FL(I;¬(x)) ∧ dM-to-FL(I;x) = 0 ∈ Point(face_lattice(I)))
BY
{ (InstLemma `dM-to-FL-neg` [] THEN RepeatFor 2 (ParallelLast')) }

1
1. I : fset(ℕ)
2. x : Point(free-DeMorgan-lattice(names(I);NamesDeq))
3. dM-to-FL(I;x) ∧ dM-to-FL(I;¬(x)) = 0 ∈ Point(face_lattice(I))
⊢ dM-to-FL(I;¬(x)) ∧ dM-to-FL(I;x) = 0 ∈ Point(face_lattice(I))

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Latex:

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Latex:
\mforall{}[I:fset(\mBbbN{})]
    \mforall{}x:Point(free-DeMorgan-lattice(names(I);NamesDeq)).  (dM-to-FL(I;\mneg{}(x))  \mwedge{}  dM-to-FL(I;x)  =  0)


By

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Latex:
(InstLemma  `dM-to-FL-neg`  []  THEN  RepeatFor  2  (ParallelLast'))

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