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Step * of Lemma uimplies_functionality_wrt_uimplies

∀[P1,P2,Q1,Q2:ℙ].  ({P1 supposing P2} ⇒ {Q2 supposing Q1} ⇒ {Q1 supposing P1 ⇒ Q2 supposing P2})
BY
{ (Unfold `guard` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[P1,P2,Q1,Q2:\mBbbP{}].    (\{P1  supposing  P2\}  {}\mRightarrow{}  \{Q2  supposing  Q1\}  {}\mRightarrow{}  \{Q1  supposing  P1  {}\mRightarrow{}  Q2  supposing  P2\})


By

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Latex:
(Unfold  `guard`  0  THEN  Auto)

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