Nuprl Lemma : p-union_wf

∀[p:FinProbSpace]. ∀[A,B:p-open(p)].  (p-union(A;B) ∈ p-open(p))


Proof




Definitions occuring in Statement :  p-union: p-union(A;B),  p-open: p-open(p),  finite-prob-space: FinProbSpace,  uall: ∀[x:A]. B[x],  member: t ∈ T
Lemmas :  set_wf,  nat_wf,  int_seg_wf,  p-outcome_wf,  all_wf,  le_wf,  int_seg_subtype-nat,  false_wf,  subtype_rel_dep_function,  subtype_rel_self,  finite-prob-space_wf,  eq_int_wf,  bool_wf,  eqtt_to_assert,  assert_of_eq_int,  lelt_wf,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  neg_assert_of_eq_int,  equal-wf-T-base,  assert_wf,  bnot_wf,  not_wf,  uiff_transitivity,  iff_transitivity,  iff_weakening_uiff,  assert_of_bnot
\mforall{}[p:FinProbSpace].  \mforall{}[A,B:p-open(p)].    (p-union(A;B)  \mmember{}  p-open(p))



Date html generated: 2015_07_17-AM-08_00_24
Last ObjectModification: 2015_01_27-AM-11_22_54

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