Step
*
of Lemma
next_wf
∀[k:ℤ]. ∀[p:{i:ℤ| k < i} ⟶ 𝔹]. (next i > k s.t. ↑p[i]) ∈ {i:ℤ| k < i ∧ (↑p[i]) ∧ (∀j:{k + 1..i-}. (¬↑p[j]))} supposi\000Cng ∃n:{i:ℤ| k < i} . (↑p[n])
BY
{ ((UnivCD THENA Auto) THEN D -1) }
1
1. k : ℤ
2. p : {i:ℤ| k < i} ⟶ 𝔹
3. n : {i:ℤ| k < i}
4. ↑p[n]
⊢ (next i > k s.t. ↑p[i]) ∈ {i:ℤ| k < i ∧ (↑p[i]) ∧ (∀j:{k + 1..i-}. (¬↑p[j]))}
Latex:
Latex:
\mforall{}[k:\mBbbZ{}]. \mforall{}[p:\{i:\mBbbZ{}| k < i\} {}\mrightarrow{} \mBbbB{}].
(next i > k s.t. \muparrow{}p[i]) \mmember{} \{i:\mBbbZ{}| k < i \mwedge{} (\muparrow{}p[i]) \mwedge{} (\mforall{}j:\{k + 1..i\msupminus{}\}. (\mneg{}\muparrow{}p[j]))\} supposing \mexists{}n:\{i:\mBbbZ{}| \000Ck < i\} . (\muparrow{}p[n])
By
Latex:
((UnivCD THENA Auto) THEN D -1)
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