Step
*
of Lemma
not-assert-isname
∀[L:Cname List]. ∀[z:extd-nameset(L)]. uiff(¬↑isname(z);z ∈ ℕ2)
BY
{ (TACTIC:Intros THEN (RepeatFor 2 (D 0) THENW ((Assert z ∈ Base BY Auto) THEN Auto))) }
1
1. L : Cname List
2. z : extd-nameset(L)
3. ¬↑isname(z)
⊢ z ∈ ℕ2
2
1. L : Cname List
2. z : extd-nameset(L)
3. z ∈ ℕ2
⊢ ¬↑isname(z)
Latex:
Latex:
\mforall{}[L:Cname List]. \mforall{}[z:extd-nameset(L)]. uiff(\mneg{}\muparrow{}isname(z);z \mmember{} \mBbbN{}2)
By
Latex:
(TACTIC:Intros THEN (RepeatFor 2 (D 0) THENW ((Assert z \mmember{} Base BY Auto) THEN Auto)))
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