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Step * of Lemma uimplies_functionality_wrt_uiff3

∀[P,Q1,Q2:ℙ].  (Dec(P) ⇒ {uiff(Q1;Q2)} ⇒ {uiff(P supposing Q1;P supposing Q2)})
BY
{ ((Unfold `guard` 0 THEN Auto) THEN D 4 THEN Auto THEN Assert ⌜False⌝⋅ THEN Auto) }

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Latex:

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Latex:
\mforall{}[P,Q1,Q2:\mBbbP{}].    (Dec(P)  {}\mRightarrow{}  \{uiff(Q1;Q2)\}  {}\mRightarrow{}  \{uiff(P  supposing  Q1;P  supposing  Q2)\})


By

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Latex:
((Unfold  `guard`  0  THEN  Auto)  THEN  D  4  THEN  Auto  THEN  Assert  \mkleeneopen{}False\mkleeneclose{}\mcdot{}  THEN  Auto)

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