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Step * of Lemma rel_inverse_wf

∀[T1,T2:Type]. ∀[R:T1 ⟶ T2 ⟶ ℙ].  (R^-1 ∈ T2 ⟶ T1 ⟶ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[T1,T2:Type].  \mforall{}[R:T1  {}\mrightarrow{}  T2  {}\mrightarrow{}  \mBbbP{}].    (R\^{}-1  \mmember{}  T2  {}\mrightarrow{}  T1  {}\mrightarrow{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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