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Step * of Lemma rel_rev_implies_weakening

∀[T:Type]. ∀[R1,R2:T ⟶ T ⟶ ℙ].  (R1 ⇐⇒ R2 ⇒ R1 ⇐ R2)
BY
{ (RepUR ``rel_equivalent rel_rev_implies rel_implies`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[R1,R2:T  {}\mrightarrow{}  T  {}\mrightarrow{}  \mBbbP{}].    (R1  \mLeftarrow{}{}\mRightarrow{}  R2  {}\mRightarrow{}  R1  \mLeftarrow{}{}  R2)


By

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Latex:
(RepUR  ``rel\_equivalent  rel\_rev\_implies  rel\_implies``  0  THEN  Auto)

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