Step
*
1
1
1
of Lemma
fresh-cname-not-equal
1. I : Cname List
2. x : Cname
3. (x ∈ I)
4. v : Cname
5. fresh-cname(I) = v ∈ {x:Cname| ¬(x ∈ I)}
6. v = x ∈ Cname
⊢ (v ∈ I)
BY
{ (HypSubst' (-1) 0 THEN Auto) }
Latex:
Latex:
1. I : Cname List
2. x : Cname
3. (x \mmember{} I)
4. v : Cname
5. fresh-cname(I) = v
6. v = x
\mvdash{} (v \mmember{} I)
By
Latex:
(HypSubst' (-1) 0 THEN Auto)
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