Step
*
of Lemma
nc-e'-p2
∀[I,J:fset(ℕ)]. ∀[f:J ⟶ I]. ∀[r:Point(dM(I))]. ∀[i:ℕ]. ∀[j:{j:ℕ| ¬j ∈ J} ].  (f,i=j ⋅ (j/f(r)) = (i/r) ⋅ f ∈ J ⟶ I+i)
BY
{ (InstLemma `nc-e\'-p` []
   THEN RepeatFor 6 (ParallelLast')
   THEN Symmetry
   THEN RWO "interval-presheaf-restriction" 0
   THEN Auto) }
Latex:
Latex:
\mforall{}[I,J:fset(\mBbbN{})].  \mforall{}[f:J  {}\mrightarrow{}  I].  \mforall{}[r:Point(dM(I))].  \mforall{}[i:\mBbbN{}].  \mforall{}[j:\{j:\mBbbN{}|  \mneg{}j  \mmember{}  J\}  ].
    (f,i=j  \mcdot{}  (j/f(r))  =  (i/r)  \mcdot{}  f)
By
Latex:
(InstLemma  `nc-e\mbackslash{}'-p`  []
  THEN  RepeatFor  6  (ParallelLast')
  THEN  Symmetry
  THEN  RWO  "interval-presheaf-restriction"  0
  THEN  Auto)
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