Step
*
2
of Lemma
general-uniform-continuity-from-fan
1. B : ℕ ⟶ Type
2. ∀i:ℕ. (B i)
3. ∀i:ℕ. ∀K:(B i) ⟶ ℕ. (∃Bnd:ℕ [(∀t:B i. ((K t) ≤ Bnd))])
4. T : Type
5. F : (i:ℕ ⟶ (B i)) ⟶ T
6. M : n:ℕ ⟶ (i:ℕn ⟶ (B i)) ⟶ (T?)
7. ∀f:i:ℕ ⟶ (B i)
((∃n:ℕ. ((M n f) = (inl (F f)) ∈ (T?))) ∧ (∀n:ℕ. (M n f) = (inl (F f)) ∈ (T?) supposing ↑isl(M n f)))
8. f : i:ℕ ⟶ (B i)
⊢ ↓∃n:ℕ. (↑isl(M n f))
BY
{ ((InstHyp [⌜f⌝] (-2)⋅ THENA Auto) THEN ExRepD) }
1
1. B : ℕ ⟶ Type
2. ∀i:ℕ. (B i)
3. ∀i:ℕ. ∀K:(B i) ⟶ ℕ. (∃Bnd:ℕ [(∀t:B i. ((K t) ≤ Bnd))])
4. T : Type
5. F : (i:ℕ ⟶ (B i)) ⟶ T
6. M : n:ℕ ⟶ (i:ℕn ⟶ (B i)) ⟶ (T?)
7. ∀f:i:ℕ ⟶ (B i)
((∃n:ℕ. ((M n f) = (inl (F f)) ∈ (T?))) ∧ (∀n:ℕ. (M n f) = (inl (F f)) ∈ (T?) supposing ↑isl(M n f)))
8. f : i:ℕ ⟶ (B i)
9. n : ℕ
10. (M n f) = (inl (F f)) ∈ (T?)
11. ∀n:ℕ. (M n f) = (inl (F f)) ∈ (T?) supposing ↑isl(M n f)
⊢ ↓∃n:ℕ. (↑isl(M n f))
Latex:
Latex:
1. B : \mBbbN{} {}\mrightarrow{} Type
2. \mforall{}i:\mBbbN{}. (B i)
3. \mforall{}i:\mBbbN{}. \mforall{}K:(B i) {}\mrightarrow{} \mBbbN{}. (\mexists{}Bnd:\mBbbN{} [(\mforall{}t:B i. ((K t) \mleq{} Bnd))])
4. T : Type
5. F : (i:\mBbbN{} {}\mrightarrow{} (B i)) {}\mrightarrow{} T
6. M : n:\mBbbN{} {}\mrightarrow{} (i:\mBbbN{}n {}\mrightarrow{} (B i)) {}\mrightarrow{} (T?)
7. \mforall{}f:i:\mBbbN{} {}\mrightarrow{} (B i)
((\mexists{}n:\mBbbN{}. ((M n f) = (inl (F f)))) \mwedge{} (\mforall{}n:\mBbbN{}. (M n f) = (inl (F f)) supposing \muparrow{}isl(M n f)))
8. f : i:\mBbbN{} {}\mrightarrow{} (B i)
\mvdash{} \mdownarrow{}\mexists{}n:\mBbbN{}. (\muparrow{}isl(M n f))
By
Latex:
((InstHyp [\mkleeneopen{}f\mkleeneclose{}] (-2)\mcdot{} THENA Auto) THEN ExRepD)
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