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Step * of Lemma is-rat-cube-face_wf

∀k:ℕ. ∀c,d:ℚCube(k).  (is-rat-cube-face(k;c;d) ∈ 𝔹)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}k:\mBbbN{}.  \mforall{}c,d:\mBbbQ{}Cube(k).    (is-rat-cube-face(k;c;d)  \mmember{}  \mBbbB{})


By

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Latex:
ProveWfLemma

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