Nuprl Lemma : egyptian-fraction

∀r:{r:ℚ| (0 ≤ r) ∧ r < 1} . (∃L:ℕ+ List [(r = Σ0 ≤ i < ||L||. (1/L[i]) ∈ ℚ)])


Proof




Definitions occuring in Statement :  qsum: Σa ≤ j < b. E[j],  qle: r ≤ s,  qless: r < s,  qdiv: (r/s),  rationals: ℚ,  select: L[n],  length: ||as||,  list: T List,  nat_plus: ℕ+,  all: ∀x:A. B[x],  sq_exists: ∃x:A [B[x]],  and: P ∧ Q,  set: {x:A| B[x]} ,  natural_number: $n,  equal: s = t ∈ T
Definitions unfolded in proof :  all: ∀x:A. B[x],  member: t ∈ T,  and: P ∧ Q,  uall: ∀[x:A]. B[x],  subtype_rel: A ⊆r B,  prop: ℙ,  exists: ∃x:A. B[x],  so_lambda: λ2x.t[x],  le: A ≤ B,  uimplies: b supposing a,  guard: {T},  int_seg: {i..j-},  nat: ℕ,  ge: i ≥ j ,  lelt: i ≤ j < k,  decidable: Dec(P),  or: P ∨ Q,  satisfiable_int_formula: satisfiable_int_formula(fmla),  false: False,  implies: P ⇒ Q,  not: ¬A,  top: Top,  less_than: a < b,  squash: ↓T,  nat_plus: ℕ+,  so_apply: x[s],  int_nzero: ℤ-o,  nequal: a ≠ b ∈ T ,  sq_stable: SqStable(P),  sq_exists: ∃x:A [B[x]],  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  sq_type: SQType(T),  true: True,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  uiff: uiff(P;Q),  rev_uimplies: rev_uimplies(P;Q),  less_than': less_than'(a;b),  subtract: n - m,  cand: A c∧ B
Lemmas referenced :  fractional-part-rep,  qle_wf,  qless_wf,  sq_exists_wf,  list_wf,  nat_plus_wf,  equal_wf,  rationals_wf,  qsum_wf,  length_wf,  qdiv_wf,  select_wf,  int_seg_properties,  nat_properties,  decidable__le,  satisfiable-full-omega-tt,  intformand_wf,  intformnot_wf,  intformle_wf,  itermConstant_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_var_lemma,  int_formula_prop_wf,  decidable__lt,  intformless_wf,  int_formula_prop_less_lemma,  subtype_rel_set,  less_than_wf,  int-subtype-rationals,  int_nzero-rational,  subtype_rel_sets,  nequal_wf,  nat_plus_properties,  intformeq_wf,  int_formula_prop_eq_lemma,  equal-wf-base,  int_subtype_base,  int_seg_wf,  set_wf,  squash_wf,  sq_stable__and,  sq_stable_from_decidable,  decidable__qle,  decidable__qless,  qless_witness,  all_wf,  nat_wf,  le_wf,  lelt_wf,  natrec_wf,  decidable__equal_int,  subtype_base_sq,  nil_wf,  length_of_nil_lemma,  true_wf,  sum_unroll_base_q,  iff_weakening_equal,  qmul-preserves-eq,  qmul_wf,  qmul_zero_qrng,  qmul-qdiv-cancel,  div_rem_sum,  rem_bounds_1,  false_wf,  not-lt-2,  not-equal-2,  add_functionality_wrt_le,  zero-add,  add-zero,  le-add-cancel,  condition-implies-le,  add-commutes,  minus-add,  minus-zero,  divide_wf,  less_than_transitivity2,  add-is-int-iff,  multiply-is-int-iff,  itermMultiply_wf,  itermAdd_wf,  int_term_value_mul_lemma,  int_term_value_add_lemma,  add_nat_wf,  mul_preserves_lt,  subtract_wf,  itermSubtract_wf,  int_term_value_subtract_lemma,  append_wf,  cons_wf,  length-append,  length_of_cons_lemma,  set_subtype_base,  length_append,  subtype_rel_list,  top_wf,  length-singleton,  non_neg_length,  sum_unroll_hi_q,  add_nat_plus,  length_wf_nat,  nat_plus_subtype_nat,  int_nzero_wf,  add-subtract-cancel,  select_append_back,  zero-le-nat,  select-cons-hd,  not_wf,  equal-wf-T-base,  select_append_front,  qadd_wf,  qmul-mul,  qadd-add,  int-equal-in-rationals,  qmul_over_plus_qrng,  qmul_assoc_qrng,  qmul_comm_qrng,  qmul_ac_1_qrng,  qmul-qdiv-cancel3,  qmul-qdiv-cancel2,  qmul_one_qrng
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  lambdaFormation,  setElimination,  thin,  rename,  cut,  introduction,  extract_by_obid,  sqequalHypSubstitution,  dependent_functionElimination,  productElimination,  dependent_set_memberEquality,  hypothesisEquality,  independent_pairFormation,  hypothesis,  productEquality,  isectElimination,  natural_numberEquality,  applyEquality,  because_Cache,  sqequalRule,  hyp_replacement,  equalitySymmetry,  applyLambdaEquality,  lambdaEquality,  independent_isectElimination,  unionElimination,  dependent_pairFormation,  int_eqEquality,  intEquality,  isect_memberEquality,  voidElimination,  voidEquality,  computeAll,  imageElimination,  setEquality,  equalityTransitivity,  baseClosed,  independent_functionElimination,  imageMemberEquality,  functionEquality,  functionExtensionality,  instantiate,  cumulativity,  comment,  dependent_set_memberFormation,  universeEquality,  addEquality,  minusEquality,  multiplyEquality,  divideEquality,  pointwiseFunctionality,  promote_hyp,  baseApply,  closedConclusion,  addLevel,  impliesFunctionality

Latex:
\mforall{}r:\{r:\mBbbQ{}|  (0  \mleq{}  r)  \mwedge{}  r  <  1\}  .  (\mexists{}L:\mBbbN{}\msupplus{}  List  [(r  =  \mSigma{}0  \mleq{}  i  <  ||L||.  (1/L[i]))])



Date html generated: 2018_05_22-AM-00_32_45
Last ObjectModification: 2017_07_26-PM-06_59_18

Theory : rationals


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