Step
*
of Lemma
combinations-n-intersecting
∀n,t:ℕ. ∀[A:Type]. (A ~ ℕ(n * t) + 1
⇒ n-intersecting(A;Combination(((n - 1) * t) + 1;A);n))
BY
{ (Auto THEN D 0 THEN Auto) }
1
1. n : ℕ
2. t : ℕ
3. [A] : Type
4. A ~ ℕ(n * t) + 1
5. Ls : Combination(((n - 1) * t) + 1;A) List
6. ||Ls|| = n ∈ ℤ
⊢ ∃a:A. (∀L∈Ls.(a ∈ L))
Latex:
Latex:
\mforall{}n,t:\mBbbN{}. \mforall{}[A:Type]. (A \msim{} \mBbbN{}(n * t) + 1 {}\mRightarrow{} n-intersecting(A;Combination(((n - 1) * t) + 1;A);n))
By
Latex:
(Auto THEN D 0 THEN Auto)
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