Step
*
of Lemma
before_all_imp_count_zero
∀s:QOSet. ∀a:|s|. ∀cs:|s| List. ((↑(∀bc(:|s|) ∈ cs. (c <b a)))
⇒ ((a #∈ cs) = 0 ∈ ℤ))
BY
{ (InductionOnListA THEN Reduce 0 THEN Auto) }
1
1. s : QOSet
2. a : |s|
3. c : |s|
4. cs : |s| List
5. (↑(∀bc(:|s|) ∈ cs. (c <b a)))
⇒ ((a #∈ cs) = 0 ∈ ℤ)
6. ↑((c <b a) ∧b (∀bc(:|s|) ∈ cs. (c <b a)))
⊢ (b2i(c (=b) a) + (a #∈ cs)) = 0 ∈ ℤ
Latex:
Latex:
\mforall{}s:QOSet. \mforall{}a:|s|. \mforall{}cs:|s| List. ((\muparrow{}(\mforall{}\msubb{}c(:|s|) \mmember{} cs. (c <\msubb{} a))) {}\mRightarrow{} ((a \#\mmember{} cs) = 0))
By
Latex:
(InductionOnListA THEN Reduce 0 THEN Auto)
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