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]
Definitions unfolded in proof :  all: ∀x:A. B[x],  implies: P ⇒ Q,  p-open-member: s ∈ C,  exists: ∃x:A. B[x],  member: t ∈ T,  prop: ℙ,  uall: ∀[x:A]. B[x],  so_lambda: λ2x.t[x],  so_apply: x[s],  nat: ℕ,  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  ifthenelse: if b then t else f fi ,  uiff: uiff(P;Q),  and: P ∧ Q,  uimplies: b supposing a,  ge: i ≥ j ,  decidable: Dec(P),  or: P ∨ Q,  satisfiable_int_formula: satisfiable_int_formula(fmla),  false: False,  not: ¬A,  top: Top,  bfalse: ff,  sq_type: SQType(T),  guard: {T},  bnot: ¬bb,  assert: ↑b,  cand: A c∧ B,  subtype_rel: A ⊆r B,  le: A ≤ B,  less_than': less_than'(a;b),  countable-p-union: countable-p-union(i.A[i]),  pi1: fst(t),  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  int_seg: {i..j-},  lelt: i ≤ j < k,  less_than: a < b,  squash: ↓T,  true: True,  p-open: p-open(p)
Lemmas referenced :  exists_wf,  nat_wf,  p-open-member_wf,  p-outcome_wf,  p-open_wf,  finite-prob-space_wf,  lt_int_wf,  bool_wf,  eqtt_to_assert,  assert_of_lt_int,  nat_properties,  decidable__le,  satisfiable-full-omega-tt,  intformand_wf,  intformnot_wf,  intformle_wf,  itermConstant_wf,  itermAdd_wf,  itermVar_wf,  int_formula_prop_and_lemma,  int_formula_prop_not_lemma,  int_formula_prop_le_lemma,  int_term_value_constant_lemma,  int_term_value_add_lemma,  int_term_value_var_lemma,  int_formula_prop_wf,  le_wf,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  less_than_wf,  intformless_wf,  int_formula_prop_less_lemma,  decidable__lt,  equal-wf-T-base,  subtype_rel_dep_function,  int_seg_wf,  int_seg_subtype_nat,  false_wf,  subtype_rel_self,  eq_int_wf,  assert_wf,  intformeq_wf,  int_formula_prop_eq_lemma,  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,  map-length,  length_upto,  l_exists_iff,  l_member_wf,  lelt_wf,  member_map,  equal-wf-base-T,  member_upto2,  decidable__equal_int,  int_seg_properties,  imax-list-lb,  l_all_iff,  all_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  lambdaFormation,  sqequalHypSubstitution,  sqequalRule,  productElimination,  thin,  cut,  introduction,  extract_by_obid,  isectElimination,  hypothesis,  lambdaEquality,  hypothesisEquality,  applyEquality,  functionExtensionality,  functionEquality,  dependent_pairFormation,  setElimination,  rename,  because_Cache,  unionElimination,  equalityElimination,  independent_isectElimination,  dependent_set_memberEquality,  addEquality,  natural_numberEquality,  dependent_functionElimination,  int_eqEquality,  intEquality,  isect_memberEquality,  voidElimination,  voidEquality,  independent_pairFormation,  computeAll,  equalityTransitivity,  equalitySymmetry,  promote_hyp,  instantiate,  cumulativity,  independent_functionElimination,  productEquality,  dependent_pairEquality,  baseClosed,  impliesFunctionality,  setEquality,  imageMemberEquality,  applyLambdaEquality,  addLevel,  allFunctionality

Latex:
\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: 2018_05_22-AM-00_36_57
Last ObjectModification: 2017_07_26-PM-07_00_33

Theory : randomness


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