Step
*
of Lemma
band_wf
∀[p,q:𝔹].  (p ∧
b
 q ∈ 𝔹)
BY
{ ProveWfLemma }
Latex:
Latex:
\mforall{}[p,q:\mBbbB{}].    (p  \mwedge{}\msubb{}  q  \mmember{}  \mBbbB{})
By
Latex:
ProveWfLemma
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