Nuprl Lemma : rng_lsum-from-upto

∀[a,b:ℤ]. ∀[r:Rng]. ∀[f:{a..b-} ⟶ |r|].  (Σ{r} x ∈ [a, b). f[x] = (Σ(r) a ≤ i < b. f[i]) ∈ |r|)


Proof




Definitions occuring in Statement :  rng_lsum: Σ{r} x ∈ as. f[x],  from-upto: [n, m),  int_seg: {i..j-},  uall: ∀[x:A]. B[x],  so_apply: x[s],  function: x:A ⟶ B[x],  int: ℤ,  equal: s = t ∈ T,  rng_sum: rng_sum,  rng: Rng,  rng_car: |r|
Definitions unfolded in proof :  less_than': less_than'(a;b),  le: A ≤ B,  subtype_rel: A ⊆r B,  or: P ∨ Q,  decidable: Dec(P),  lelt: i ≤ j < k,  int_seg: {i..j-},  rng: Rng,  guard: {T},  prop: ℙ,  and: P ∧ Q,  top: Top,  exists: ∃x:A. B[x],  satisfiable_int_formula: satisfiable_int_formula(fmla),  not: ¬A,  uimplies: b supposing a,  ge: i ≥ j ,  false: False,  implies: P ⇒ Q,  nat: ℕ,  member: t ∈ T,  uall: ∀[x:A]. B[x],  all: ∀x:A. B[x],  assert: ↑b,  bnot: ¬bb,  sq_type: SQType(T),  bfalse: ff,  infix_ap: x f y,  has-value: (a)↓,  ifthenelse: if b then t else f fi ,  uiff: uiff(P;Q),  btrue: tt,  it: ⋅,  unit: Unit,  bool: 𝔹,  from-upto: [n, m),  rev_implies: P ⇐ Q,  iff: P ⇐⇒ Q,  true: True,  so_apply: x[s],  so_lambda: λ2x.t[x],  squash: ↓T,  ycomb: Y,  itop: Π(op,id) lb ≤ i < ub. E[i],  grp_id: e,  pi1: fst(t),  pi2: snd(t),  grp_op: *,  add_grp_of_rng: r↓+gp,  mon_itop: Π lb ≤ i < ub. E[i],  rng_sum: rng_sum
Lemmas referenced :  nat_wf,  int_term_value_add_lemma,  itermAdd_wf,  lelt_wf,  decidable__lt,  int_formula_prop_eq_lemma,  intformeq_wf,  false_wf,  int_seg_subtype,  decidable__equal_int,  int_term_value_subtract_lemma,  int_formula_prop_not_lemma,  itermSubtract_wf,  intformnot_wf,  subtract_wf,  decidable__le,  int_seg_properties,  le_wf,  rng_wf,  rng_car_wf,  int_seg_wf,  less_than_wf,  ge_wf,  int_formula_prop_wf,  int_formula_prop_less_lemma,  int_term_value_var_lemma,  int_term_value_constant_lemma,  int_formula_prop_le_lemma,  int_formula_prop_and_lemma,  intformless_wf,  itermVar_wf,  itermConstant_wf,  intformle_wf,  intformand_wf,  full-omega-unsat,  nat_properties,  rng_lsum_nil_lemma,  assert-bnot,  bool_subtype_base,  subtype_base_sq,  bool_cases_sqequal,  eqff_to_assert,  rng_plus_wf,  int-value-type,  value-type-has-value,  rng_lsum_cons_lemma,  assert_of_lt_int,  eqtt_to_assert,  bool_wf,  lt_int_wf,  iff_weakening_equal,  rng_sum_unroll_lo,  from-upto_wf,  rng_lsum_wf,  true_wf,  squash_wf,  equal_wf,  rng_sum_wf,  rng_zero_wf,  imax_ub,  imax_wf,  assert_of_le_int,  le_int_wf,  ifthenelse_wf,  add_functionality_wrt_eq,  imax_unfold
Rules used in proof :  cut,  isect_memberFormation,  dependent_set_memberEquality,  hypothesis_subsumption,  applyLambdaEquality,  applyEquality,  unionElimination,  productElimination,  because_Cache,  equalitySymmetry,  equalityTransitivity,  addEquality,  functionEquality,  axiomEquality,  independent_pairFormation,  sqequalRule,  voidEquality,  voidElimination,  isect_memberEquality,  dependent_functionElimination,  intEquality,  int_eqEquality,  lambdaEquality,  dependent_pairFormation,  independent_functionElimination,  approximateComputation,  independent_isectElimination,  natural_numberEquality,  intWeakElimination,  rename,  setElimination,  hypothesis,  hypothesisEquality,  isectElimination,  sqequalHypSubstitution,  extract_by_obid,  introduction,  thin,  lambdaFormation,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution,  cumulativity,  instantiate,  promote_hyp,  callbyvalueReduce,  equalityElimination,  baseClosed,  imageMemberEquality,  functionExtensionality,  productEquality,  setEquality,  universeEquality,  imageElimination,  inlFormation

Latex:
\mforall{}[a,b:\mBbbZ{}].  \mforall{}[r:Rng].  \mforall{}[f:\{a..b\msupminus{}\}  {}\mrightarrow{}  |r|].    (\mSigma{}\{r\}  x  \mmember{}  [a,  b).  f[x]  =  (\mSigma{}(r)  a  \mleq{}  i  <  b.  f[i]))



Date html generated: 2018_05_21-PM-09_33_12
Last ObjectModification: 2017_12_15-AM-10_09_36

Theory : matrices


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