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Step * of Lemma rel-preserving_wf

∀[T1,T2:Type]. ∀[R1:T1 ⟶ T1 ⟶ Type]. ∀[R2:T2 ⟶ T2 ⟶ Type]. ∀[f:T2 ⟶ T1].  (λx.f[x]:T2->T1 takes R2 into R1*) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[T1,T2:Type].  \mforall{}[R1:T1  {}\mrightarrow{}  T1  {}\mrightarrow{}  Type].  \mforall{}[R2:T2  {}\mrightarrow{}  T2  {}\mrightarrow{}  Type].  \mforall{}[f:T2  {}\mrightarrow{}  T1].
    (\mlambda{}x.f[x]:T2->T1  takes  R2  into  R1*)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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