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Step * of Lemma rel-path-between_wf

∀[T:Type]. ∀[R:T ⟶ T ⟶ ℙ]. ∀[L:T List]. ∀[x,y:T].  (rel-path-between(T;R;x;y;L) ∈ ℙ)
BY
{ (Unfold `rel-path-between` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[R:T  {}\mrightarrow{}  T  {}\mrightarrow{}  \mBbbP{}].  \mforall{}[L:T  List].  \mforall{}[x,y:T].    (rel-path-between(T;R;x;y;L)  \mmember{}  \mBbbP{})


By

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Latex:
(Unfold  `rel-path-between`  0  THEN  Auto)

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