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Step * of Lemma matrix+_wf

∀[n,m:ℤ]. ∀[j:ℕm + 1]. ∀[r:RngSig]. ∀[M:Matrix(n;m;r)].  (matrix+(r;j;M) ∈ Matrix(n + 1;m + 1;r))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[n,m:\mBbbZ{}].  \mforall{}[j:\mBbbN{}m  +  1].  \mforall{}[r:RngSig].  \mforall{}[M:Matrix(n;m;r)].    (matrix+(r;j;M)  \mmember{}  Matrix(n  +  1;m  +  1;r))


By

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Latex:
ProveWfLemma

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