Nuprl Lemma : ratLegendre-aux_wf

∀[x:ℤ × ℕ+]. ∀[n:ℕ+]. ∀[tr:k:ℕ+n + 1
                           × {a:ℤ × ℕ+| ratreal(a) = Legendre(k;ratreal(x))} 
                           × {b:ℤ × ℕ+| ratreal(b) = Legendre(k - 1;ratreal(x))} ].
  (ratLegendre-aux(n;x;tr) ∈ {y:ℤ × ℕ+| ratreal(y) = Legendre(n;ratreal(x))} )


Proof




Definitions occuring in Statement :  ratLegendre-aux: ratLegendre-aux(n;x;tr),  Legendre: Legendre(n;x),  ratreal: ratreal(r),  req: x = y,  int_seg: {i..j-},  nat_plus: ℕ+,  uall: ∀[x:A]. B[x],  member: t ∈ T,  set: {x:A| B[x]} ,  product: x:A × B[x],  subtract: n - m,  add: n + m,  natural_number: $n,  int: ℤ
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  all: ∀x:A. B[x],  nat: ℕ,  implies: P ⇒ Q,  false: False,  ge: i ≥ j ,  uimplies: b supposing a,  not: ¬A,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  top: Top,  and: P ∧ Q,  prop: ℙ,  ratLegendre-aux: ratLegendre-aux(n;x;tr),  spreadn: spread3,  nat_plus: ℕ+,  decidable: Dec(P),  or: P ∨ Q,  sq_type: SQType(T),  guard: {T},  subtype_rel: A ⊆r B,  so_lambda: λ2x.t[x],  so_apply: x[s],  has-value: (a)↓,  int_nzero: ℤ-o,  nequal: a ≠ b ∈ T ,  Legendre: Legendre(n;x),  squash: ↓T,  true: True,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  ifthenelse: if b then t else f fi ,  bfalse: ff,  subtract: n - m,  uiff: uiff(P;Q),  rev_uimplies: rev_uimplies(P;Q),  rsub: x - y,  int_seg: {i..j-},  lelt: i ≤ j < k,  pi1: fst(t),  le: A ≤ B,  less_than': less_than'(a;b)
Lemmas referenced :  nat_plus_wf,  istype-int,  nat_properties,  full-omega-unsat,  intformand_wf,  intformle_wf,  itermConstant_wf,  itermVar_wf,  intformless_wf,  int_formula_prop_and_lemma,  istype-void,  int_formula_prop_le_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_formula_prop_less_lemma,  int_formula_prop_wf,  ge_wf,  istype-less_than,  nat_plus_properties,  decidable__equal_int,  intformnot_wf,  intformeq_wf,  itermAdd_wf,  int_formula_prop_not_lemma,  int_formula_prop_eq_lemma,  int_term_value_add_lemma,  subtype_base_sq,  int_subtype_base,  req_wf,  ratreal_wf,  Legendre_wf,  decidable__le,  istype-le,  set_subtype_base,  less_than_wf,  subtract_wf,  itermSubtract_wf,  int_term_value_subtract_lemma,  subtract-1-ge-0,  value-type-has-value,  int-value-type,  int-rdiv_wf,  nequal_wf,  ratadd_wf,  int-rat-mul_wf,  ratmul_wf,  set-value-type,  product-value-type,  rat-nat-div_wf,  decidable__lt,  bool_wf,  bool_subtype_base,  equal_wf,  squash_wf,  true_wf,  istype-universe,  eq_int_eq_false,  bfalse_wf,  subtype_rel_self,  iff_weakening_equal,  add-subtract-cancel,  itermMultiply_wf,  int_term_value_mul_lemma,  add-associates,  add-swap,  add-commutes,  zero-add,  istype-nat,  radd_wf,  int-rmul_wf,  rmul_wf,  rsub_wf,  nat_plus_subtype_nat,  req_functionality,  req_transitivity,  ratreal-rat-nat-div,  int-rdiv_functionality,  ratreal-ratadd,  radd_functionality,  ratreal-int-rat-mul,  int-rmul_functionality,  ratreal-ratmul,  req_weakening,  rminus_wf,  rminus_functionality,  req_inversion,  rmul_functionality,  int-to-real_wf,  rmul_over_rminus,  int-rmul-req,  real_wf,  rminus-int,  pi1_wf_top,  subtract_nat_wf,  int_seg_wf,  int_seg_properties,  subtract-is-int-iff,  false_wf,  lelt_wf,  subtype_rel_set,  nat_wf,  equal-wf-base,  int_seg_subtype_nat,  istype-false
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation_alt,  cut,  universeIsType,  introduction,  extract_by_obid,  hypothesis,  productIsType,  lambdaFormation_alt,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  setElimination,  rename,  sqequalRule,  intWeakElimination,  natural_numberEquality,  independent_isectElimination,  approximateComputation,  independent_functionElimination,  dependent_pairFormation_alt,  lambdaEquality_alt,  int_eqEquality,  dependent_functionElimination,  isect_memberEquality_alt,  voidElimination,  independent_pairFormation,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  isectIsTypeImplies,  inhabitedIsType,  functionIsTypeImplies,  productElimination,  because_Cache,  unionElimination,  int_eqReduceTrueSq,  instantiate,  cumulativity,  intEquality,  dependent_set_memberEquality_alt,  setIsType,  equalityIstype,  baseApply,  closedConclusion,  baseClosed,  applyEquality,  sqequalBase,  int_eqReduceFalseSq,  callbyvalueReduce,  addEquality,  setEquality,  productEquality,  multiplyEquality,  minusEquality,  dependent_pairEquality_alt,  independent_pairEquality,  imageElimination,  universeEquality,  imageMemberEquality,  applyLambdaEquality,  pointwiseFunctionality,  promote_hyp

Latex:
\mforall{}[x:\mBbbZ{}  \mtimes{}  \mBbbN{}\msupplus{}].  \mforall{}[n:\mBbbN{}\msupplus{}].  \mforall{}[tr:k:\mBbbN{}\msupplus{}n  +  1
                                                      \mtimes{}  \{a:\mBbbZ{}  \mtimes{}  \mBbbN{}\msupplus{}|  ratreal(a)  =  Legendre(k;ratreal(x))\} 
                                                      \mtimes{}  \{b:\mBbbZ{}  \mtimes{}  \mBbbN{}\msupplus{}|  ratreal(b)  =  Legendre(k  -  1;ratreal(x))\}  ].
    (ratLegendre-aux(n;x;tr)  \mmember{}  \{y:\mBbbZ{}  \mtimes{}  \mBbbN{}\msupplus{}|  ratreal(y)  =  Legendre(n;ratreal(x))\}  )



Date html generated: 2019_10_30-AM-11_34_07
Last ObjectModification: 2019_01_11-AM-10_30_29

Theory : reals_2


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