Step
*
of Lemma
strong-continuity2-implies-3
∀[T:Type]. ∀[F:(ℕ ⟶ T) ⟶ ℕ]. (strong-continuity2(T;F)
⇒ strong-continuity3(T;F))
BY
{ (Auto THEN D -1 THEN UnfoldTopAb 0) }
1
1. [T] : Type
2. [F] : (ℕ ⟶ T) ⟶ ℕ
3. M : n:ℕ ⟶ (ℕn ⟶ T) ⟶ (ℕ?)
4. ∀f:ℕ ⟶ T. ((∃n:ℕ. ((M n f) = (inl (F f)) ∈ (ℕ?))) ∧ (∀n:ℕ. (M n f) = (inl (F f)) ∈ (ℕ?) supposing ↑isl(M n f)))
⊢ ∃M:n:ℕ ⟶ (ℕn ⟶ T) ⟶ (ℕ?)
∀f:ℕ ⟶ T. ∃n:ℕ. (((M n f) = (inl (F f)) ∈ (ℕ?)) ∧ (∀m:ℕ. ((↑isl(M m f))
⇒ (m = n ∈ ℕ))))
Latex:
Latex:
\mforall{}[T:Type]. \mforall{}[F:(\mBbbN{} {}\mrightarrow{} T) {}\mrightarrow{} \mBbbN{}]. (strong-continuity2(T;F) {}\mRightarrow{} strong-continuity3(T;F))
By
Latex:
(Auto THEN D -1 THEN UnfoldTopAb 0)
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