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Step * 2 1 of Lemma assert_of_band


1. p : 𝔹
2. ↑p
3. q : ⋂:True. 𝔹
⊢ uiff(↑q;True ∧ (↑q))
BY
{ TACTIC:(GenConcl ⌜q = z⌝⋅ THEN Try (With ⌜⋅⌝ (D (-1))⋅) THEN Auto) }

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Latex:

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Latex:

1.  p  :  \mBbbB{}
2.  \muparrow{}p
3.  q  :  \mcap{}:True.  \mBbbB{}
\mvdash{}  uiff(\muparrow{}q;True  \mwedge{}  (\muparrow{}q))


By

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Latex:
TACTIC:(GenConcl  \mkleeneopen{}q  =  z\mkleeneclose{}\mcdot{}  THEN  Try  (With  \mkleeneopen{}\mcdot{}\mkleeneclose{}  (D  (-1))\mcdot{})  THEN  Auto)

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