Nuprl Lemma : bag-decomp_wf

∀[T:Type]. ∀[bs:bag(T)].  (bag-decomp(bs) ∈ bag(T × bag(T)))


Proof




Definitions occuring in Statement :  bag-decomp: bag-decomp(bs),  bag: bag(T),  uall: ∀[x:A]. B[x],  member: t ∈ T,  product: x:A × B[x],  universe: Type
Definitions unfolded in proof :  prop: ℙ,  implies: P ⇒ Q,  so_apply: x[s],  so_lambda: λ2x.t[x],  subtype_rel: A ⊆r B,  all: ∀x:A. B[x],  uimplies: b supposing a,  so_apply: x[s1;s2],  so_lambda: λ2x y.t[x; y],  bag-decomp: bag-decomp(bs),  and: P ∧ Q,  quotient: x,y:A//B[x; y],  bag: bag(T),  member: t ∈ T,  uall: ∀[x:A]. B[x],  exists: ∃x:A. B[x],  permutation: permutation(T;L1;L2),  ge: i ≥ j ,  nat: ℕ,  sq_type: SQType(T),  false: False,  satisfiable_int_formula: satisfiable_int_formula(fmla),  not: ¬A,  or: P ∨ Q,  decidable: Dec(P),  less_than: a < b,  le: A ≤ B,  lelt: i ≤ j < k,  int_seg: {i..j-},  rev_implies: P ⇐ Q,  iff: P ⇐⇒ Q,  guard: {T},  true: True,  squash: ↓T,  remove-nth: remove-nth(n;L),  int_iseg: {i...j},  cand: A c∧ B,  less_than': less_than'(a;b),  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  uiff: uiff(P;Q),  ifthenelse: if b then t else f fi ,  bfalse: ff,  bnot: ¬bb,  assert: ↑b,  inject: Inj(A;B;f),  subtract: n - m,  respects-equality: respects-equality(S;T)
Lemmas referenced :  istype-universe,  upto_wf,  list-subtype-bag,  subtype_rel_product,  remove-nth_wf,  length_wf,  int_seg_wf,  map_wf,  permutation-equiv,  permutation_wf,  list_wf,  quotient-member-eq,  bag_wf,  length_wf_nat,  length_upto,  length-map,  int_term_value_constant_lemma,  itermConstant_wf,  int_seg_properties,  member_wf,  istype-less_than,  istype-le,  int_formula_prop_eq_lemma,  int_formula_prop_less_lemma,  int_formula_prop_and_lemma,  intformeq_wf,  intformless_wf,  intformand_wf,  decidable__lt,  nat_properties,  le_wf,  set_subtype_base,  istype-nat,  int_subtype_base,  subtype_base_sq,  int_formula_prop_wf,  int_term_value_var_lemma,  int_formula_prop_le_lemma,  int_formula_prop_not_lemma,  istype-int,  itermVar_wf,  intformle_wf,  intformnot_wf,  full-omega-unsat,  decidable__le,  le_weakening,  int_seg_subtype,  subtype_rel_dep_function,  map_permute_list,  permute_list_wf,  iff_weakening_equal,  subtype_rel_self,  true_wf,  squash_wf,  equal_wf,  permute_list_length,  inject_wf,  list_extensionality,  map-length,  select-map,  subtype_rel_list,  top_wf,  select-upto,  lelt_wf,  non_neg_length,  select_wf,  permute_list_select,  select_upto,  append_wf,  firstn_wf,  nth_tl_wf,  subtract_wf,  itermAdd_wf,  int_term_value_add_lemma,  decidable__equal_int,  itermSubtract_wf,  int_term_value_subtract_lemma,  length-append,  add_functionality_wrt_eq,  length_firstn,  length_nth_tl,  subtype_rel_sets_simple,  add_nat_wf,  int_seg_subtype_nat,  istype-false,  istype-void,  false_wf,  permutation_inversion,  lt_int_wf,  eqtt_to_assert,  assert_of_lt_int,  eqff_to_assert,  bool_cases_sqequal,  bool_wf,  bool_subtype_base,  assert-bnot,  iff_weakening_uiff,  assert_wf,  less_than_wf,  subtract_nat_wf,  nat_wf,  add-is-int-iff,  subtype-base-respects-equality,  change-equality-type,  not-le-2,  condition-implies-le,  add-associates,  minus-add,  minus-one-mul,  add-swap,  minus-one-mul-top,  add-mul-special,  zero-mul,  add-zero,  add-commutes,  le-add-cancel2,  subtract-is-int-iff,  equal-wf-base,  equal-wf-T-base,  select-append,  le_int_wf,  bnot_wf,  uiff_transitivity,  assert_functionality_wrt_uiff,  bnot_of_lt_int,  assert_of_le_int,  length_firstn_eq,  length_append,  select-firstn,  select-nth_tl,  zero-add,  select_nth_tl,  select_firstn,  respects-equality-list-bag,  respects-equality-trivial,  respects-equality-product,  respects-equality-list
Rules used in proof :  universeEquality,  instantiate,  isectIsTypeImplies,  isect_memberEquality_alt,  equalityTransitivity,  axiomEquality,  equalitySymmetry,  sqequalBase,  equalityIstype,  productIsType,  independent_functionElimination,  lambdaFormation_alt,  applyEquality,  natural_numberEquality,  dependent_functionElimination,  because_Cache,  independent_isectElimination,  universeIsType,  inhabitedIsType,  lambdaEquality_alt,  productElimination,  promote_hyp,  pertypeElimination,  sqequalRule,  hypothesis,  hypothesisEquality,  productEquality,  thin,  isectElimination,  extract_by_obid,  pointwiseFunctionalityForEquality,  sqequalHypSubstitution,  cut,  introduction,  isect_memberFormation_alt,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution,  dependent_pairFormation_alt,  Error :memTop,  independent_pairFormation,  applyLambdaEquality,  hyp_replacement,  closedConclusion,  baseApply,  dependent_set_memberEquality_alt,  cumulativity,  voidElimination,  int_eqEquality,  approximateComputation,  unionElimination,  rename,  setElimination,  baseClosed,  imageMemberEquality,  intEquality,  imageElimination,  functionIsType,  independent_pairEquality,  addEquality,  pointwiseFunctionality,  equalityElimination,  functionEquality,  minusEquality,  multiplyEquality,  functionExtensionality

Latex:
\mforall{}[T:Type].  \mforall{}[bs:bag(T)].    (bag-decomp(bs)  \mmember{}  bag(T  \mtimes{}  bag(T)))



Date html generated: 2020_05_20-AM-08_02_56
Last ObjectModification: 2020_01_31-PM-03_36_11

Theory : bags


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