Nuprl Lemma : fpf-vals_wf

∀[A:Type]. ∀[eq:EqDecider(A)]. ∀[B:A ─→ Type]. ∀[P:A ─→ 𝔹]. ∀[f:x:A fp-> B[x]].  (fpf-vals(eq;P;f) ∈ (x:{a:A| ↑(P a)}  ×\000C B[x]) List)


Proof




Definitions occuring in Statement :  fpf-vals: fpf-vals(eq;P;f),  fpf: a:A fp-> B[a],  deq: EqDecider(T),  list: T List,  assert: ↑b,  bool: 𝔹,  uall: ∀[x:A]. B[x],  so_apply: x[s],  member: t ∈ T,  set: {x:A| B[x]} ,  apply: f a,  function: x:A ─→ B[x],  product: x:A × B[x],  universe: Type
Lemmas :  fpf_wf,  bool_wf,  deq_wf,  remove-repeats_wf,  l_member_wf,  subtype_rel-deq,  member_wf,  equal_wf,  set_wf,  list-subtype,  list_wf,  nat_properties,  less_than_transitivity1,  less_than_irreflexivity,  ge_wf,  less_than_wf,  equal-wf-T-base,  colength_wf_list,  list-cases,  filter_nil_lemma,  zip_nil_lemma,  nil_wf,  assert_wf,  product_subtype_list,  spread_cons_lemma,  sq_stable__le,  le_antisymmetry_iff,  add_functionality_wrt_le,  add-associates,  add-zero,  zero-add,  le-add-cancel,  nat_wf,  decidable__le,  false_wf,  not-le-2,  condition-implies-le,  minus-add,  minus-one-mul,  add-commutes,  le_wf,  subtract_wf,  not-ge-2,  less-iff-le,  minus-minus,  add-swap,  subtype_base_sq,  set_subtype_base,  int_subtype_base,  filter_cons_lemma,  map_cons_lemma,  zip_cons_cons_lemma,  cons_wf,  bnot_wf,  not_wf,  eqtt_to_assert,  uiff_transitivity,  eqff_to_assert,  assert_of_bnot
\mforall{}[A:Type].  \mforall{}[eq:EqDecider(A)].  \mforall{}[B:A  {}\mrightarrow{}  Type].  \mforall{}[P:A  {}\mrightarrow{}  \mBbbB{}].  \mforall{}[f:x:A  fp->  B[x]].
    (fpf-vals(eq;P;f)  \mmember{}  (x:\{a:A|  \muparrow{}(P  a)\}    \mtimes{}  B[x])  List)



Date html generated: 2015_07_17-AM-11_09_14
Last ObjectModification: 2015_01_28-AM-07_45_29

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