Step * 2 of Lemma not-assert-isname


1. Cname List
2. extd-nameset(L)
3. z ∈ ℕ2
⊢ ¬↑isname(z)
BY
TACTIC:(GenConcl ⌜n ∈ ℕ2⌝⋅ THENA Auto) }

1
1. Cname List
2. extd-nameset(L)
3. z ∈ ℕ2
4. : ℕ2
5. n ∈ ℕ2
⊢ ¬↑isname(n)


Latex:


Latex:

1.  L  :  Cname  List
2.  z  :  extd-nameset(L)
3.  z  \mmember{}  \mBbbN{}2
\mvdash{}  \mneg{}\muparrow{}isname(z)


By


Latex:
TACTIC:(GenConcl  \mkleeneopen{}z  =  n\mkleeneclose{}\mcdot{}  THENA  Auto)




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