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Step * of Lemma matrix-times_wf

∀[n,k,m:ℤ]. ∀[r:Rng]. ∀[M:Matrix(n;k;r)]. ∀[N:Matrix(k;m;r)].  ((M*N) ∈ Matrix(n;m;r))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[n,k,m:\mBbbZ{}].  \mforall{}[r:Rng].  \mforall{}[M:Matrix(n;k;r)].  \mforall{}[N:Matrix(k;m;r)].    ((M*N)  \mmember{}  Matrix(n;m;r))


By

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Latex:
ProveWfLemma

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