Nuprl Lemma : member-countable-p-union

∀p:FinProbSpace. ∀A:ℕ ─→ p-open(p). ∀s:ℕ ─→ Outcome.  ((∃i:ℕ. s ∈ A[i]) ⇒ s ∈ countable-p-union(i.A[i]))


Proof




Definitions occuring in Statement :  countable-p-union: countable-p-union(i.A[i]),  p-open-member: s ∈ C,  p-open: p-open(p),  p-outcome: Outcome,  finite-prob-space: FinProbSpace,  nat: ℕ,  so_apply: x[s],  all: ∀x:A. B[x],  exists: ∃x:A. B[x],  implies: P ⇒ Q,  function: x:A ─→ B[x]
Lemmas :  lt_int_wf,  bool_wf,  eqtt_to_assert,  assert_of_lt_int,  decidable__le,  false_wf,  not-le-2,  sq_stable__le,  less-iff-le,  condition-implies-le,  minus-add,  minus-one-mul,  zero-add,  add-associates,  add-swap,  add-commutes,  add_functionality_wrt_le,  add-zero,  le-add-cancel,  le_wf,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  less_than_wf,  decidable__lt,  add-mul-special,  zero-mul,  equal-wf-T-base,  countable-p-union_wf,  nat_wf,  p-open_wf,  subtype_rel_dep_function,  p-outcome_wf,  int_seg_wf,  int_seg_subtype-nat,  subtype_rel_self,  eq_int_wf,  assert_wf,  bnot_wf,  not_wf,  uiff_transitivity,  assert_of_eq_int,  iff_transitivity,  iff_weakening_uiff,  assert_of_bnot,  imax-list-ub,  map_wf,  upto_wf,  squash_wf,  true_wf,  map_length_nat,  iff_weakening_equal,  length_upto,  less_than_transitivity2,  l_exists_iff,  l_member_wf,  lelt_wf,  member_map,  equal-wf-base-T,  member_upto2,  imax-list-lb,  l_all_iff,  le-add-cancel2,  exists_wf,  all_wf,  imax-list_wf
\mforall{}p:FinProbSpace.  \mforall{}A:\mBbbN{}  {}\mrightarrow{}  p-open(p).  \mforall{}s:\mBbbN{}  {}\mrightarrow{}  Outcome.
    ((\mexists{}i:\mBbbN{}.  s  \mmember{}  A[i])  {}\mRightarrow{}  s  \mmember{}  countable-p-union(i.A[i]))



Date html generated: 2015_07_17-AM-08_00_48
Last ObjectModification: 2015_02_03-PM-09_45_28

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