Step
*
1
2
of Lemma
nullset-union
1. p : FinProbSpace
2. [S] : ℕ ⟶ (ℕ ⟶ Outcome) ⟶ ℙ
3. ∀i:ℕ. ∀q:{q:ℚ| 0 < q} . ∃C:p-open(p). ((∀s:ℕ ⟶ Outcome. ((S[i] s)
⇒ s ∈ C)) ∧ measure(C) ≤ q)
4. q : {q:ℚ| 0 < q}
5. F : ℕ ⟶ {q:ℚ| 0 < q} ⟶ p-open(p)
6. ∀i:ℕ. ∀q:{q:ℚ| 0 < q} . ((∀s:ℕ ⟶ Outcome. ((S[i] s)
⇒ s ∈ F i q)) ∧ measure(F i q) ≤ q)
⊢ (∀s:ℕ ⟶ Outcome. ((∃i:ℕ. (S[i] s))
⇒ s ∈ countable-p-union(i.F i (q * (1/2) ↑ i + 1))))
∧ measure(countable-p-union(i.F i (q * (1/2) ↑ i + 1))) ≤ q
BY
{ D 0 }
1
1. p : FinProbSpace
2. [S] : ℕ ⟶ (ℕ ⟶ Outcome) ⟶ ℙ
3. ∀i:ℕ. ∀q:{q:ℚ| 0 < q} . ∃C:p-open(p). ((∀s:ℕ ⟶ Outcome. ((S[i] s)
⇒ s ∈ C)) ∧ measure(C) ≤ q)
4. q : {q:ℚ| 0 < q}
5. F : ℕ ⟶ {q:ℚ| 0 < q} ⟶ p-open(p)
6. ∀i:ℕ. ∀q:{q:ℚ| 0 < q} . ((∀s:ℕ ⟶ Outcome. ((S[i] s)
⇒ s ∈ F i q)) ∧ measure(F i q) ≤ q)
⊢ ∀s:ℕ ⟶ Outcome. ((∃i:ℕ. (S[i] s))
⇒ s ∈ countable-p-union(i.F i (q * (1/2) ↑ i + 1)))
2
1. p : FinProbSpace
2. [S] : ℕ ⟶ (ℕ ⟶ Outcome) ⟶ ℙ
3. ∀i:ℕ. ∀q:{q:ℚ| 0 < q} . ∃C:p-open(p). ((∀s:ℕ ⟶ Outcome. ((S[i] s)
⇒ s ∈ C)) ∧ measure(C) ≤ q)
4. q : {q:ℚ| 0 < q}
5. F : ℕ ⟶ {q:ℚ| 0 < q} ⟶ p-open(p)
6. ∀i:ℕ. ∀q:{q:ℚ| 0 < q} . ((∀s:ℕ ⟶ Outcome. ((S[i] s)
⇒ s ∈ F i q)) ∧ measure(F i q) ≤ q)
⊢ measure(countable-p-union(i.F i (q * (1/2) ↑ i + 1))) ≤ q
Latex:
Latex:
1. p : FinProbSpace
2. [S] : \mBbbN{} {}\mrightarrow{} (\mBbbN{} {}\mrightarrow{} Outcome) {}\mrightarrow{} \mBbbP{}
3. \mforall{}i:\mBbbN{}. \mforall{}q:\{q:\mBbbQ{}| 0 < q\} . \mexists{}C:p-open(p). ((\mforall{}s:\mBbbN{} {}\mrightarrow{} Outcome. ((S[i] s) {}\mRightarrow{} s \mmember{} C)) \mwedge{} measure(C) \mleq{} q)
4. q : \{q:\mBbbQ{}| 0 < q\}
5. F : \mBbbN{} {}\mrightarrow{} \{q:\mBbbQ{}| 0 < q\} {}\mrightarrow{} p-open(p)
6. \mforall{}i:\mBbbN{}. \mforall{}q:\{q:\mBbbQ{}| 0 < q\} . ((\mforall{}s:\mBbbN{} {}\mrightarrow{} Outcome. ((S[i] s) {}\mRightarrow{} s \mmember{} F i q)) \mwedge{} measure(F i q) \mleq{} q)
\mvdash{} (\mforall{}s:\mBbbN{} {}\mrightarrow{} Outcome. ((\mexists{}i:\mBbbN{}. (S[i] s)) {}\mRightarrow{} s \mmember{} countable-p-union(i.F i (q * (1/2) \muparrow{} i + 1))))
\mwedge{} measure(countable-p-union(i.F i (q * (1/2) \muparrow{} i + 1))) \mleq{} q
By
Latex:
D 0
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