Step
*
of Lemma
uext-ap-name
∀[I,J:Cname List]. ∀[g:name-morph(I;J)]. ∀[x:nameset(I)]. ((uext(g) x) = (g x) ∈ extd-nameset(J))
BY
{ (Auto THEN Unfold `uext` 0 THEN Reduce 0 THEN RWO "isname-name" 0 THEN Reduce 0 THEN Auto) }
Latex:
Latex:
\mforall{}[I,J:Cname List]. \mforall{}[g:name-morph(I;J)]. \mforall{}[x:nameset(I)]. ((uext(g) x) = (g x))
By
Latex:
(Auto THEN Unfold `uext` 0 THEN Reduce 0 THEN RWO "isname-name" 0 THEN Reduce 0 THEN Auto)
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