Step
*
of Lemma
mkr2_wf
∀[a,b:ℝ].  (mkr2(a;b) ∈ ℝ^2)
BY
{ (Unfold `real-vec` 0 THEN ProveWfLemma) }
Latex:
Latex:
\mforall{}[a,b:\mBbbR{}].    (mkr2(a;b)  \mmember{}  \mBbbR{}\^{}2)
By
Latex:
(Unfold  `real-vec`  0  THEN  ProveWfLemma)
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